Cita APA (7a ed.)

Graziano, A. M., & Raulin, M. L. (1993). Research methods: A process of inquiry (2nd ed.). HarperCollins College Publishers.

Cita Chicago Style (17a ed.)

Graziano, Anthony M., y Michael L. Raulin. Research Methods: A Process of Inquiry. 2nd ed. New York: HarperCollins College Publishers, 1993.

Cita MLA (9a ed.)

Graziano, Anthony M., y Michael L. Raulin. Research Methods: A Process of Inquiry. 2nd ed. HarperCollins College Publishers, 1993.