APA

Armbruster M. E., .The Presidents of the United States, and their administrations from Washington to Nixon. New York: Horizon Press, c1960.

Chicago

Armbruster Maxim Ethan, .The Presidents of the United States, and their administrations from Washington to Nixon. New York: Horizon Press, c1960.

Harvard

Armbruster M. E., .The Presidents of the United States, and their administrations from Washington to Nixon. New York: Horizon Press, c1960.

MLA

Armbruster Maxim Ethan, .New York: Horizon Press, c1960. .