APA Citation

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

Chicago Style Citation

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

MLA Citation

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

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