Cita APA (7a ed.)
Leedy, P. D. (1985). Practical Research: Planning and design (3rd.ed.). Macmillan.
Cita Chicago Style (17a ed.)
Leedy, Paul D. Practical Research: Planning and Design. 3rd.ed. New York: Macmillan, 1985.
Cita MLA (9a ed.)
Leedy, Paul D. Practical Research: Planning and Design. 3rd.ed. Macmillan, 1985.
Precaución: Estas citas no son 100% exactas.