Παραπομπή APA

(1986). The American presidents: The office and the men. Connecticut: Grolier Educational Corporation.

Παραπομπή Chicago Style

The American Presidents: The Office and the Men. Connecticut: Grolier Educational Corporation, 1986.

Παραπομπή MLA

The American Presidents: The Office and the Men. Connecticut: Grolier Educational Corporation, 1986.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.