Merrill, W. S. (1939). Code for classifiers: Principles governing the consistent placing of books in a system of classification (2nd ed.). American Library Association.
Chicagoスタイル(17版)引用形式Merrill, William Stetson. Code for Classifiers: Principles Governing the Consistent Placing of Books in a System of Classification. 2nd ed. Chicago: American Library Association, 1939.
MLA(9版)引用形式Merrill, William Stetson. Code for Classifiers: Principles Governing the Consistent Placing of Books in a System of Classification. 2nd ed. American Library Association, 1939.
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