Cita APA (7th ed.)

Trochim, W. M. K. (2005). Research methods: The concise knowledge base. Atomic Dog Pub./Cengage Learning.

Cita Chicago (17th ed.)

Trochim, William M. K. Research Methods: The Concise Knowledge Base. Cincinnati, Ohio: Atomic Dog Pub./Cengage Learning, 2005.

Cita MLA (8th ed.)

Trochim, William M. K. Research Methods: The Concise Knowledge Base. Atomic Dog Pub./Cengage Learning, 2005.