Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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