APA (7th ed.) Citation

Abel, T. F. (1986). Why Hitler came into power. Harvard Univ. Pr.

Chicago Style (17th ed.) Citation

Abel, Theodore Fred. Why Hitler Came into Power. Cambridge, Mass. [u.a.]: Harvard Univ. Pr, 1986.

MLA (8th ed.) Citation

Abel, Theodore Fred. Why Hitler Came into Power. Harvard Univ. Pr, 1986.