APA (7th ed.) Citation

Wanklyn, H. G. (1961). Friedrich Ratzel: A biological memoir and bibliography. University Press.

Chicago Style (17th ed.) Citation

Wanklyn, Harriet Grace. Friedrich Ratzel: A Biological Memoir and Bibliography. Cambridge [England]: University Press, 1961.

MLA (9th ed.) Citation

Wanklyn, Harriet Grace. Friedrich Ratzel: A Biological Memoir and Bibliography. University Press, 1961.