APA

Possony S. T., . (1953). A century of conflict. Chicago: Regnery.

Chicago

Possony S T, . 1953. A century of conflict. Chicago: Regnery.

Harvard

Possony S. T., . (1953). A century of conflict. Chicago: Regnery.

MLA

Possony S T, . A century of conflict. Chicago: Regnery. 1953.