Katz, W. A. (1987). Introduction to reference work: V.1 - Basic information services (5th ed.). McGraw-Hill Book Company.
Citace podle Chicago (17th ed.)Katz, William A. Introduction to Reference Work: V.1 - Basic Information Services. 5th ed. New York: McGraw-Hill Book Company, 1987.
Citace podle MLA (9th ed.)Katz, William A. Introduction to Reference Work: V.1 - Basic Information Services. 5th ed. McGraw-Hill Book Company, 1987.
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