Cita APA (7th ed.)

Trochim, W. M. K. (2003). Research methods (2nd ed.). Biztantra.

Cita Chicago (17th ed.)

Trochim, William M. K. Research Methods. 2nd ed. New Delhi: Biztantra, 2003.

Cita MLA (8th ed.)

Trochim, William M. K. Research Methods. 2nd ed. Biztantra, 2003.