APA

Kant I., . (1938). Fundamental principles of the metaphysic of ethics. New York: Appleton-Century-Crofts, Inc.

Chicago

Kant Immanuel, . 1938. Fundamental principles of the metaphysic of ethics. New York: Appleton-Century-Crofts, Inc.

Harvard

Kant I., . (1938). Fundamental principles of the metaphysic of ethics. New York: Appleton-Century-Crofts, Inc.

MLA

Kant Immanuel, . Fundamental principles of the metaphysic of ethics. New York: Appleton-Century-Crofts, Inc. 1938.