Cita APA

Graziano, A. M., & Raulin, M. L. (2010). Research methods: A process of enquiry (23.).

Citación estilo Chicago

Graziano, Anthony M., and Michael L. Raulin. Research Methods: A Process of Enquiry. 23. Allyn & Bacon, Boston, 2010.

Cita MLA

Graziano, Anthony M., and Michael L. Raulin. Research Methods: A Process of Enquiry. 23. 2010.