APA (7th ed.) Citation

Campbell, N. R., & Ritchie, D. (1934). Photoelectric cells: Their properties, use, and applications (3d ed.). Pitman.

Chicago Style (17th ed.) Citation

Campbell, Norman Robert, and Dorothy Ritchie. Photoelectric Cells: Their Properties, Use, and Applications. 3d ed. London, New York: Pitman, 1934.

MLA (9th ed.) Citation

Campbell, Norman Robert, and Dorothy Ritchie. Photoelectric Cells: Their Properties, Use, and Applications. 3d ed. Pitman, 1934.