Cita APA (7th ed.)

Walliman, N. S. R. (2011). Research methods: The basics. Routledge.

Cita Chicago (17th ed.)

Walliman, Nicholas S. R. Research Methods: The Basics. London, New York: Routledge, 2011.

Cita MLA (9th ed.)

Walliman, Nicholas S. R. Research Methods: The Basics. Routledge, 2011.