Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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