APA

Paxton Robert O, . (1975). Europe In The Twentieth Century. San Diego: Harcourt Brace Jovanovich.

Chicago

Paxton Robert O, . 1975. Europe In The Twentieth Century. San Diego: Harcourt Brace Jovanovich.

Harvard

Paxton Robert O, . (1975). Europe In The Twentieth Century. San Diego: Harcourt Brace Jovanovich.

MLA

Paxton Robert O, . Europe In The Twentieth Century. San Diego: Harcourt Brace Jovanovich. 1975.