Cita APA (7a ed.)

Barrows, W. E. (1938). Light, photometry and illuminating engineering (2nd ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Barrows, William E. Light, Photometry and Illuminating Engineering. 2nd ed. New York, London: McGraw-Hill, 1938.

Cita MLA (8a ed.)

Barrows, William E. Light, Photometry and Illuminating Engineering. 2nd ed. McGraw-Hill, 1938.