APA (7th ed.) Citation

Hammond, J. H. (1981). The camera obscura: A chronicle. Hilger.

Chicago Style (17th ed.) Citation

Hammond, John H. The Camera Obscura: A Chronicle. Bristol: Hilger, 1981.

MLA (9th ed.) Citation

Hammond, John H. The Camera Obscura: A Chronicle. Hilger, 1981.

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