Style de citation APA (7e éd.)

Portier, W. L. (1985). Isaac Hecker and the First Vatican Council. E. Mellen Press.

Style de citation Chicago (17e éd.)

Portier, William L. Isaac Hecker and the First Vatican Council. Lewiston, N.Y.: E. Mellen Press, 1985.

Style de citation MLA (8e éd.)

Portier, William L. Isaac Hecker and the First Vatican Council. E. Mellen Press, 1985.