Osterhout, W. J. V. L. (1924). The nature of life. New York: Holt.
Παραπομπή Chicago StyleOsterhout, Winthrop John Van Leuven. The Nature of Life. New York: Holt, 1924.
Deismireacht MLAOsterhout, Winthrop John Van Leuven. The Nature of Life. New York: Holt, 1924.
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