Gumpert, M., & Shuman, E. L. (1936). Trail-blazers of science: Life stories of some half-forgotten pioneers of modern research. Funk & Wagnalls company.
Citace podle Chicago (17th ed.)Gumpert, Martin, a Edwin L. Shuman. Trail-blazers of Science: Life Stories of Some Half-forgotten Pioneers of Modern Research. New York, London: Funk & Wagnalls company, 1936.
Citace podle MLA (8th ed.)Gumpert, Martin, a Edwin L. Shuman. Trail-blazers of Science: Life Stories of Some Half-forgotten Pioneers of Modern Research. Funk & Wagnalls company, 1936.
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