Sigma Xi, the Scientific Research Society. (1942). American scientist. Society of the Sigma Xi.
Cita Chicago Style (17a ed.)Sigma Xi, the Scientific Research Society. American Scientist. Easton, Pensilvania: Society of the Sigma Xi, 1942.
Cita MLA (9a ed.)Sigma Xi, the Scientific Research Society. American Scientist. Society of the Sigma Xi, 1942.
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