Answered By: Carmen Doering
Last Updated: Jul 25, 2015     Views: 51

Call numbers serve as a books "address" to help you locate it on the shelf. Most American universities, including Lamar, use Library of Congress call numbers.


QA107 .S69 1977  is the call number for a book titled Essentials of Mathematics with Consumer Applications by Max A. Sobel. It will appear on the book's spine like this:


Library of Congress call numbers begin with one to three letters indicating a general subject (QA=Mathematics).

These are followed by numbers, which refer to more specific subject matter: (QA107=Basic Mathematics or Arithmetic).

The third line often represents the author's last name (S=Sobel).

The last line indicates the date of publication: 1977.


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