Cita APA (7th ed.)

Grahame, J., Pyle, A., & Sugiyama, C. (1994). An inquiry into the principle of population. Routledge / Thoemmes Press.

Cita Chicago (17th ed.)

Grahame, James, Andrew Pyle, i Chuhei Sugiyama. An Inquiry into the Principle of Population. London: Routledge / Thoemmes Press, 1994.

Cita MLA (9th ed.)

Grahame, James, et al. An Inquiry into the Principle of Population. Routledge / Thoemmes Press, 1994.