APA

Stumpf S. E., . (1971). Philosophical problems: selected readings in ethics, religion, political philosophy, epistemology, and metaphysics. New York: McGraw-Hill.

Chicago

Stumpf Samuel Enoch, . 1971. Philosophical problems: selected readings in ethics, religion, political philosophy, epistemology, and metaphysics. New York: McGraw-Hill.

Harvard

Stumpf S. E., . (1971). Philosophical problems: selected readings in ethics, religion, political philosophy, epistemology, and metaphysics. New York: McGraw-Hill.

MLA

Stumpf Samuel Enoch, . Philosophical problems: selected readings in ethics, religion, political philosophy, epistemology, and metaphysics. New York: McGraw-Hill. 1971.