APA (7th ed.) Citation

Lincoln, E. S. (1949). 1949 Supplement to Lincoln's industrial-commercial electrical reference book: First edition, 1941. Electrical Modernization Bureau.

Chicago Style (17th ed.) Citation

Lincoln, E. S. 1949 Supplement to Lincoln's Industrial-commercial Electrical Reference Book: First Edition, 1941. New York: Electrical Modernization Bureau, 1949.

MLA (9th ed.) Citation

Lincoln, E. S. 1949 Supplement to Lincoln's Industrial-commercial Electrical Reference Book: First Edition, 1941. Electrical Modernization Bureau, 1949.