Cita APA (7th ed.)

Nichols, P. (1991). Social survey methods: The fieldguide for development workers. Oxfam.

Cita Chicago (17th ed.)

Nichols, Paul. Social Survey Methods: The Fieldguide for Development Workers. Oxford: Oxfam, 1991.

Cita MLA (9th ed.)

Nichols, Paul. Social Survey Methods: The Fieldguide for Development Workers. Oxfam, 1991.