Mitchell, M. L., & Jolley, J. (2004). Research design explained (5th ed.). Wadsworth/Thomson Learning.
Cita Chicago Style (17a ed.)Mitchell, Mark L., y Janina Jolley. Research Design Explained. 5th ed. Australia: Wadsworth/Thomson Learning, 2004.
Cita MLA (9a ed.)Mitchell, Mark L., y Janina Jolley. Research Design Explained. 5th ed. Wadsworth/Thomson Learning, 2004.
Precaución: Estas citas no son 100% exactas.