Cita APA

Winterbotham, H. S. L. (1939). A key to maps: By H.S.L. Winterbotham (2nd ed.). Blackie.

Citación estilo Chicago

Winterbotham, H. S. L. A Key to Maps: By H.S.L. Winterbotham. 2nd ed. London: Blackie, 1939.

Cita MLA

Winterbotham, H. S. L. A Key to Maps: By H.S.L. Winterbotham. 2nd ed. Blackie, 1939.

Warning: These citations may not always be 100% accurate.