To search by LCCN, ISBN, and ISSN, select Guided Keyword, Command Keyword, or Keyword Search from the first screen of the Library of Congress Online Catalog <http://catalog.loc.gov/>. Using Guided Keyword, select the appropriate index name from the "Search in:" drop down menu -- for LCCNs choose the LC Control Number LCCN (K010) and for ISBNs and ISSNs select International Standard Numbers (KISN).

Obtain an ISBN / Bookland number from www.isbn.org, let's assume you received "0-672-32230-7". Select Code EAN 13 in the codetype and enter "978" (that's the standard ISBN prefix used to distinguish book from grocery products etc.) into the data field for your code and append your number. Leave out the last digit and the hyphens. The text should then read: "978067232230". The price is encoded in the 5 digit Add On and usually left padded with "0". See similar questions...

Information about ISBNs may be obtained from the R.R. Bowker Company, 630 Central Avenue, New Providence, NJ 07974. Tel: 877-310-7333 Fax: 908-665-2895. They also maintain an ISBN web page. Information about ISSN numbers may be obtained from the National Serials Data Program, Library of Congress, Washington, DC 20540-4160. The telephone number is 202-707-6452. Recorded information is available at this telephone number 24 hours a day. See similar questions...

ISSN (International Standard Serial Number) is required for each new serial title published. If an online version is also published, two separate ISSN are required. (Thus, two applications for an ISSN--one for the print version and one for the online version--are required.) For serials published in the United States, an ISSN must be obtained from the ISSN Center at the Library of Congress. All the application information is available at their Web site: http://www.loc.gov/issn. See similar questions...

International Standard Book Number. Each book, and each edition of a given title, has a unique ISBN. The ISBN can be found on a barcode on the book's rear cover, and printed on the copyright page near the front of the book. See similar questions...

The ISBN (International Standard Book Number), is a ten-digit code used to identify a book. Each book has its own ISBN. You can find the ISBN on the back of a book near the barcode or on the copyright page. Our system uses the ISBN to identify the buyback value. See similar questions...