APA (7th ed.) Citation

Spykman, N. J., & Nicholl, H. R. (1944). The geography of the peace. Harcourt, Brace and company.

Chicago Style (17th ed.) Citation

Spykman, Nicholas John, and Helen R. Nicholl. The Geography of the Peace. New York: Harcourt, Brace and company, 1944.

MLA (9th ed.) Citation

Spykman, Nicholas John, and Helen R. Nicholl. The Geography of the Peace. Harcourt, Brace and company, 1944.