Não informado. (1969). Michigan Academician. Michigan Academy of Science, Arts and Letters.
Citace podle Chicago (17th ed.)Não informado. Michigan Academician. Ann Arbor, Mich: Michigan Academy of Science, Arts and Letters, 1969.
Citace podle MLA (8th ed.)Não informado. Michigan Academician. Michigan Academy of Science, Arts and Letters, 1969.
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