Gregory, S. (1963). Statistical Methods and the Geographer (2nd ed.). Longman.
Citación estilo ChicagoGregory, S. Statistical Methods and the Geographer. 2nd ed. London: Longman, 1963.
Cita MLAGregory, S. Statistical Methods and the Geographer. 2nd ed. Longman, 1963.
Warning: These citations may not always be 100% accurate.