American industrial psychologist Fritz Roethlisberger, with William J. Dickson, publishes Management and the Worker: an account of a research program conducted by the Western Electric Company, Hawthorne works, Chicago.
↑ Snyder, John P. (1993). Flattening the Earth: Two Thousand Years of Map Projections. University of Chicago Press. ISBN978-0-226-76747-5.
↑ van der Krogt, Peter. "87 Francium". Elementymology & Elements Multidict. Retrieved January 7, 2019.
↑ MacCorquodale, D. W.; Binkley, S. B.; Thayer, S. A.; Doisy, E. A. (1939). "On the Constitution of Vitamin K1". Journal of the American Chemical Society. 61 (7): 1928–1929. doi:10.1021/ja01876a510.
↑ Smith, Michael (2007). Station X: the Codebreakers of Bletchley Park. Pan Grand Strategy Series (rev.ed.). London: Pan Macmillan. p.60. ISBN978-0-330-41929-1.
↑ Clifton J., Philips (1971). "Fearn, Anne Walter". In James, Edward T. (ed.). Notable American Women, 1607-1950: A Biographical Dictionary. Vol.1. p.603. ISBN978-0-67462-734-5.
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