APA استشهاد

Black, H. C. (1919). The relation of the executive power to legislation. Princeton University Press.

استشهاد بنمط شيكاغو

Black, Henry Campbell. The Relation of the Executive Power to Legislation. London: Princeton University Press, 1919.

MLA استشهاد

Black, Henry Campbell. The Relation of the Executive Power to Legislation. Princeton University Press, 1919.