APA (7th ed.) Citation

Robertson, B. L., & Black, L. J. (1949). Electric circuits and machines. Van Nostrand.

Chicago Style (17th ed.) Citation

Robertson, Burtis L., and Leonard J. Black. Electric Circuits and Machines. New York: Van Nostrand, 1949.

MLA (9th ed.) Citation

Robertson, Burtis L., and Leonard J. Black. Electric Circuits and Machines. Van Nostrand, 1949.