Graziano, A. M., & Raulin, M. L. (1993). Research methods: A process of inquiry (2nd ed.). HarperCollins College Publishers.
Citace podle Chicago (17th ed.)Graziano, Anthony M., a Michael L. Raulin. Research Methods: A Process of Inquiry. 2nd ed. New York: HarperCollins College Publishers, 1993.
Citace podle MLA (9th ed.)Graziano, Anthony M., a Michael L. Raulin. Research Methods: A Process of Inquiry. 2nd ed. HarperCollins College Publishers, 1993.
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