PDF(534 KB)
A Study on the Equation of the Number of Duplicates in Library Collections and Its Borrowing Times
Liu Jun Ding Xing
Library and Information Service ›› 1995, Vol. 39 ›› Issue (2) : 40-41.
PDF(534 KB)
PDF(534 KB)
A Study on the Equation of the Number of Duplicates in Library Collections and Its Borrowing Times
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