Cita APA

Leedy, P. D. (2015). Practical research: Planning and design. Harlow, Essex: Pearson Education.

Chicago Style Citation

Leedy, Paul D. Practical Research: Planning and Design. Harlow, Essex: Pearson Education, 2015.

Cita MLA

Leedy, Paul D. Practical Research: Planning and Design. Harlow, Essex: Pearson Education, 2015.

Atenció: Aquestes cites poden no estar 100% correctes.