Cita APA (7th ed.)

Gates, J. K. (1989). Guide to the use of libraries and information sources (6th ed.). McGraw-Hill Book Company.

Cita Chicago (17th ed.)

Gates, Jean Key. Guide to the Use of Libraries and Information Sources. 6th ed. New York: McGraw-Hill Book Company, 1989.

Cita MLA (9th ed.)

Gates, Jean Key. Guide to the Use of Libraries and Information Sources. 6th ed. McGraw-Hill Book Company, 1989.