Cita APA (7a ed.)

Walker, R. (1948). Photoelectric cells in industry. Pitman & Sons.

Cita Chicago Style (17a ed.)

Walker, R.C. Photoelectric Cells in Industry. London: Pitman & Sons, 1948.

Cita MLA (9a ed.)

Walker, R.C. Photoelectric Cells in Industry. Pitman & Sons, 1948.