Cita APA (7th ed.)

O'Brien, R., & Soderman, J. (1975). The Basic guide to research sources. New American Library.

Cita Chicago (17th ed.)

O'Brien, Robert, i Joanne Soderman. The Basic Guide to Research Sources. New York: New American Library, 1975.

Cita MLA (9th ed.)

O'Brien, Robert, i Joanne Soderman. The Basic Guide to Research Sources. New American Library, 1975.