APA ציטוט

Osterhout, W. J. V. L. (1924). The nature of life. New York: Holt.

Παραπομπή Chicago Style

Osterhout, Winthrop John Van Leuven. The Nature of Life. New York: Holt, 1924.

ציטוט MLA

Osterhout, Winthrop John Van Leuven. The Nature of Life. New York: Holt, 1924.