Cita APA (7th ed.)

Gregory, S. (1963). Statistical Methods and the Geographer (2nd ed.). Longman.

Cita Chicago (17th ed.)

Gregory, S. Statistical Methods and the Geographer. 2nd ed. London: Longman, 1963.

Cita MLA (9th ed.)

Gregory, S. Statistical Methods and the Geographer. 2nd ed. Longman, 1963.