Παραπομπή APA

Cunliffe, M. (1969). American Presidents and the Presidents. Eyre and Spottiswoode.

Παραπομπή Chicago Style

Cunliffe, Marcus. American Presidents and the Presidents. London: Eyre and Spottiswoode, 1969.

Παραπομπή MLA

Cunliffe, Marcus. American Presidents and the Presidents. Eyre and Spottiswoode, 1969.