APA (7e ed.) Bronvermelding

Carr, A. H. Z. (1962). John D. Rockefeller's secret weapon ([1st ed.].). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Carr, Albert H. Z. John D. Rockefeller's Secret Weapon. [1st ed.]. New York: McGraw-Hill, 1962.

MLA (8e ed.) Bronvermelding

Carr, Albert H. Z. John D. Rockefeller's Secret Weapon. [1st ed.]. McGraw-Hill, 1962.