Tohutoro APA (7th ed.)
Leedy, P. D. (1974). Practical research: Planning and design. Macmillan.
Tohutoru Kātū Chicago (17th ed.)
Leedy, Paul D. Practical Research: Planning and Design. New York: Macmillan, 1974.
Tohutoro MLA (9th ed.)
Leedy, Paul D. Practical Research: Planning and Design. Macmillan, 1974.
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