APA ציטוט

Leedy, P. D. (2001). Practical research: Planning and design. Merrill Prentice Hall.

Trích dẫn kiểu Chicago

Leedy, Paul D. Practical Research: Planning and Design. Merrill Prentice Hall, 2001.

ציטוט MLA

Leedy, Paul D. Practical Research: Planning and Design. Merrill Prentice Hall, 2001.