Cita APA

Moses, J. B., & Cross, W. (1980). Presidential courage (1. ed.). New York: Norton.

Citación estilo Chicago

Moses, John B., y Wilbur Cross. Presidential Courage. 1. ed. New York: Norton, 1980.

Cita MLA

Moses, John B., y Wilbur Cross. Presidential Courage. 1. ed. New York: Norton, 1980.