Cita APA (7a ed.)

Gregory, J. (1908). Geography structural, physical, and comparative. Blackie.

Cita Chicago Style (17a ed.)

Gregory, J.W. Geography Structural, Physical, and Comparative. London: Blackie, 1908.

Cita MLA (9a ed.)

Gregory, J.W. Geography Structural, Physical, and Comparative. Blackie, 1908.