APA استشهاد

Willoughby,Westel Woodbury. (1929). The constitutional law of the United States - volume 2 (2nd ed.). Baker Voorghis and company.

استشهاد بنمط شيكاغو

Willoughby,Westel Woodbury. The Constitutional Law of the United States - Volume 2. 2nd ed. NewYork: Baker Voorghis and company, 1929.

MLA استشهاد

Willoughby,Westel Woodbury. The Constitutional Law of the United States - Volume 2. 2nd ed. Baker Voorghis and company, 1929.