Adams, R. (2017). Cottonwoods: Photographs, and a conversation about picture-making in the american West / Robert Adams (First Steidl edition.). Steidl.
Chicago-referens (17:e uppl.)Adams, Robert. Cottonwoods: Photographs, and a Conversation About Picture-making in the American West / Robert Adams. First Steidl edition. Göttingen, Germany: Steidl, 2017.
MLA-referens (8:e uppl.)Adams, Robert. Cottonwoods: Photographs, and a Conversation About Picture-making in the American West / Robert Adams. First Steidl edition. Steidl, 2017.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.