APA

Hall W. P., . (1952). World wars and revolutions: the course of Europe since 1900. New York: Appleton-Century-Crofts.

Chicago

Hall Walter Phelps, . 1952. World wars and revolutions: the course of Europe since 1900. New York: Appleton-Century-Crofts.

Harvard

Hall W. P., . (1952). World wars and revolutions: the course of Europe since 1900. New York: Appleton-Century-Crofts.

MLA

Hall Walter Phelps, . World wars and revolutions: the course of Europe since 1900. New York: Appleton-Century-Crofts. 1952.