Παραπομπή APA

Friedrich, C. J. (1967). Introduction to Political theory: Twelve Lectures at Harvard. Jaico.

Παραπομπή Chicago Style

Friedrich, Carl J. Introduction to Political Theory: Twelve Lectures at Harvard. Bombay: Jaico, 1967.

Παραπομπή MLA

Friedrich, Carl J. Introduction to Political Theory: Twelve Lectures at Harvard. Jaico, 1967.