APA (7th ed.) Citation

Webb, R., & Reed, M. (1999). Spirits of salts: A working guide to old photographic processes. Argentum.

Chicago Style (17th ed.) Citation

Webb, Randall, and Martin Reed. Spirits of Salts: A Working Guide to Old Photographic Processes. London: Argentum, 1999.

MLA (9th ed.) Citation

Webb, Randall, and Martin Reed. Spirits of Salts: A Working Guide to Old Photographic Processes. Argentum, 1999.