APA (7th ed.) Zitazioa

Mitchell, M., & Jolley, J. (1988). Research design explained. Holt, Reinehart and Winston.

Chicago Style (17th ed.) Zitazioa

Mitchell, Mark, eta Janina Jolley. Research Design Explained. New York: Holt, Reinehart and Winston, 1988.

MLA (9th ed.) Zitazioa

Mitchell, Mark, eta Janina Jolley. Research Design Explained. Holt, Reinehart and Winston, 1988.