APA (7th ed.) Citation

Guérard, A. L. (1948). Personal equation ([1st ed.].). W.W. Norton.

Chicago Style (17th ed.) Citation

Guérard, Albert Léon. Personal Equation. [1st ed.]. New York: W.W. Norton, 1948.

MLA (9th ed.) Citation

Guérard, Albert Léon. Personal Equation. [1st ed.]. W.W. Norton, 1948.