# Get bibliographic info from a standard number Access the results of a WorldCat bib read API search by ISBN, ISSN, or OCLC number. The MARCXML returned by the API is parsed and the function returns a `data.table` containing the oclc number, ISBN, ISSN, title, author, MARC leader, and the 008 control field, respectively. ```r worldcat_api_bib_read_info_by_oclc( x, wskey = getOption("libbib.wskey", NULL), more = FALSE, debug = FALSE ) worldcat_api_bib_read_info_by_isbn( x, wskey = getOption("libbib.wskey", NULL), more = FALSE, debug = FALSE ) worldcat_api_bib_read_info_by_issn( x, wskey = getOption("libbib.wskey", NULL), more = FALSE, debug = FALSE ) ``` ## Arguments - `x`: A string representation of the standard number that the function chosen accepts. - `wskey`: A WorldCat API key (default is `getOption("libbib.wskey")`) - `more`: A logical indicating whether more infomation from the MARCXML should be returned (publisher, bib level etc....) In the interest of memory consumption, the default is `FALSE` - `debug`: A logical indicating whether the HTTP and bib read API responses should be printed (for debugging) (default is `FALSE`) ## Returns A `data.table` containing the OCLC number, ISBN, ISSN, title, author, MARC leader, and the 008 control field, respectively, ## Details Though this function gets all standard numbers (OCLC, ISBN, ISSN) from the MARCXML, the standard number that was supplied to the function will be the one in the returned `data.table`. For example, if you use `worldcat_api_bib_read_info_by_isbn`, the returned `data.table` will have that ISBN in the ISBN column, not the ISBN in the MARC record. If something went wrong, all columns (except the one corresponding to the supplied standard number) will be NA. This function is helpful to call before attempting to use the Location and Classify API functions as it will ensure that the supplied standard number actually resolves to a OCLC work. As with all API access functions in this package, it's up to the user to limit their API usage so as to not get blocked. These functions are deliberately not vectorized for this reason; they only accept one standard number at a time. This (and other) WorldCat API communication functions require a WorldCat API key. The easiest way to use these functions is to set a global options with your key: `options("libbib.wskey"="YOUR KEY HERE")` Final note: all of these API functions seem to work better with OCLC numbers than any other standard number. If multiple standard numbers are available, using the OCLC number is always preferred. ## Examples ```r ## Not run: worldcat_api_bib_read_info_by_isbn("9780984201006") # oclc isbn issn title # # 1: 462894360 9780984201006 The Great Debate about Art / # author leader # # 1: Harris, Roy, 00000cam a2200000 a 4500 # oh08 # # 1: 091031s2010 ilua b 000 0 eng c worldcat_api_bib_read_info_by_issn("13602365") # oclc isbn issn title author # # 1: 37787277 14664410 The journal of architecture. # leader oh08 # # 1: 00000cas a2200000 a 4500 971015c19969999enkbx pso 0 a0eng c ## End(Not run) ```

worldcat_api_bib_read_info_by function