Cita APA (7th ed.)

Bechhofer, F., & Paterson, L. (2000). Principles of research design in the social sciences. Routledge.

Cita Chicago (17th ed.)

Bechhofer, Frank, i Lindsay Paterson. Principles of Research Design in the Social Sciences. London ; New York: Routledge, 2000.

Cita MLA (8th ed.)

Bechhofer, Frank, i Lindsay Paterson. Principles of Research Design in the Social Sciences. Routledge, 2000.