APA (7th ed.) Citation

Leedy, P. D. (1992). Practical research planning and desing (5a. ed.). MacMillan.

Chicago Style (17th ed.) Citation

Leedy, Paul D. Practical Research Planning and Desing. 5a. ed. Nueva York: MacMillan, 1992.

MLA (9th ed.) Citation

Leedy, Paul D. Practical Research Planning and Desing. 5a. ed. MacMillan, 1992.

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