APA (7e ed.) Bronvermelding
Leedy, P. D. (1989). Practical research: Planning and design (4th ed.). Macmillan ; Collier Macmillan.
Chicago (17e ed.) Bronvermelding
Leedy, Paul D. Practical Research: Planning and Design. 4th ed. New York : London: Macmillan ; Collier Macmillan, 1989.
MLA (9e ed.) Bronvermelding
Leedy, Paul D. Practical Research: Planning and Design. 4th ed. Macmillan ; Collier Macmillan, 1989.
Let op: Deze citaties zijn niet altijd 100% accuraat.