APA

Knowlton A. E., . (1941). Standard handbook for electrical engineers. New York: McGraw-Hill.

Chicago

Knowlton Archer E, . 1941. Standard handbook for electrical engineers. New York: McGraw-Hill.

Harvard

Knowlton A. E., . (1941). Standard handbook for electrical engineers. New York: McGraw-Hill.

MLA

Knowlton Archer E, . Standard handbook for electrical engineers. New York: McGraw-Hill. 1941.