United States. Navy Department. Bureau of Navigation. (1923). Answers to questions in elementary magnetism and electricity, course 310, assignment 1-20. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Navy Department. Bureau of Navigation. Answers to Questions in Elementary Magnetism and Electricity, Course 310, Assignment 1-20. Washington: U.S. GPO, 1923.
MLA (9th ed.) CitationUnited States. Navy Department. Bureau of Navigation. Answers to Questions in Elementary Magnetism and Electricity, Course 310, Assignment 1-20. U.S. GPO, 1923.
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