APA (7th ed.) Citation

Howard, A. V. (1951). Chamber's dictionary of scientists. E. P. Dutton.

Chicago Style (17th ed.) Citation

Howard, Arthur V. Chamber's Dictionary of Scientists. New York: E. P. Dutton, 1951.

MLA (9th ed.) Citation

Howard, Arthur V. Chamber's Dictionary of Scientists. E. P. Dutton, 1951.