APA (7th ed.) Citation

Welling, W. (1976). Collectors' guide to nineteenth-century photographs. Macmillan.

Chicago Style (17th ed.) Citation

Welling, William. Collectors' Guide to Nineteenth-century Photographs. New York: Macmillan, 1976.

MLA (9th ed.) Citation

Welling, William. Collectors' Guide to Nineteenth-century Photographs. Macmillan, 1976.