id author title date pages extension mime words sentences flesch summary cache txt 5583 Grant, Robert S. Predicting the Need for Multiple Copies of Books 1971-06-01 8 .pdf application/pdf 2724 328 79 PREDICTING THE NEED FOR MULTIPLE COPIES OF BOOKS An industrial inventory technique adapted to a university library's computer based circulation system as one aid in identifying heavily used books the average length of time a title was on loan, i.e., the total number of days in which a title was in circulation divided by the number of times For example, if a book circulated three times during the academic year By providing an analysis of the present circulation profile of each book, the formula attempts to predict the number of copies of each title the Library would need to have in order to more "Copies Circulated" is the number of books with the same classification The column labelled "Projected Need" should, according to the calculations, indicate the number of copies of a title which could accommodate The first time the Borrower's ID number appears on the book's circulation ./cache/5583.pdf ./txt/5583.txt