APA (7th ed.) Citation

Sommer, A. H. (1947). Photoelectric cells. Chemical publishing co., inc..

Chicago Style (17th ed.) Citation

Sommer, A. H. Photoelectric Cells. Brooklyn, N.Y.: Chemical publishing co., inc., 1947.

MLA (9th ed.) Citation

Sommer, A. H. Photoelectric Cells. Chemical publishing co., inc., 1947.

Warning: These citations may not always be 100% accurate.