APA (7th ed.) Citation

Croft, A. (1947). Polar exploration (2nd ed.). Black.

Chicago Style (17th ed.) Citation

Croft, Andrew. Polar Exploration. 2nd ed. London: Black, 1947.

MLA (9th ed.) Citation

Croft, Andrew. Polar Exploration. 2nd ed. Black, 1947.

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