Knowlton, A. E., & Shoop, R. M. (1957). Standard handbook for electrical engineers: Prepared by a staff of specialists (9th ed.). New York: McGraw-Hill Book Co..
Παραπομπή Chicago StyleKnowlton, Archer Eben, and R. M. Shoop. Standard Handbook for Electrical Engineers: Prepared By a Staff of Specialists. 9th ed. New York: McGraw-Hill Book Co., 1957.
Παραπομπή MLAKnowlton, Archer Eben, and R. M. Shoop. Standard Handbook for Electrical Engineers: Prepared By a Staff of Specialists. 9th ed. New York: McGraw-Hill Book Co., 1957.
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