Cita APA (7th ed.)

Graziano, A. M., & Raulin, M. L. (1989). Research methods: A process of inquiry. Harper & Row.

Cita Chicago (17th ed.)

Graziano, Anthony M., i Michael L. Raulin. Research Methods: A Process of Inquiry. New York: Harper & Row, 1989.

Cita MLA (8th ed.)

Graziano, Anthony M., i Michael L. Raulin. Research Methods: A Process of Inquiry. Harper & Row, 1989.