Cita APA (7a ed.)

Gregory, S. (1968). Statistical Methods and the Geographers (2. ed.). Longmans.

Cita Chicago Style (17a ed.)

Gregory, S. Statistical Methods and the Geographers. 2. ed. London: Longmans, 1968.

Cita MLA (9a ed.)

Gregory, S. Statistical Methods and the Geographers. 2. ed. Longmans, 1968.