APA (7th ed.) Citation

Snelling, H. H. (1994). The History and Practice of the Art of Photography. Project Gutenberg.

Chicago Style (17th ed.) Citation

Snelling, Henry Hunt. The History and Practice of the Art of Photography. Project Gutenberg, 1994.

MLA (9th ed.) Citation

Snelling, Henry Hunt. The History and Practice of the Art of Photography. Project Gutenberg, 1994.

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