The book call number is a unique identifier of each book. An example is given below:
For example, below are two samples of catalogue book records.
Call number→ QA
Intermediate Algebra /by
.W74 Franklin Wright and Bill
D.New,Boston:Allynand Bacon, 1981.
Specific topic → 1. Algebra I. New, Bill D.
Call number→ QA Stokowski ,E. W.
Fundamentals of College Algebra/ by
Earl W.Swokowski, JeffreyA.Cole.- 8thed.
Boston: PWS, 1992.
Specific topic → 1. Algebra I.Cole, Jeffrey A. II. Title
As shown above Franklin D. Wright and Earl W. Swokowski are only two authors
among many who have written books on algebra. The call number is available on the card
catalogue and the OPAC record.