APA (7e ed.) Bronvermelding

Pious, R. M. (1979). The american presidency. Basic Books.

Chicago (17e ed.) Bronvermelding

Pious, Richard M. The American Presidency. Nueva York: Basic Books, 1979.

MLA (9e ed.) Bronvermelding

Pious, Richard M. The American Presidency. Basic Books, 1979.