APA (7th ed.) Citation

Compton, F. E. Compton's Encyclopedia and fact-index: P-PHOTO.

Chicago Style (17th ed.) Citation

Compton, F. E. Compton's Encyclopedia and Fact-index: P-PHOTO.

MLA (8th ed.) Citation

Compton, F. E. Compton's Encyclopedia and Fact-index: P-PHOTO.

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