Tuttle, C. A. (1995). An ounce of preservation: A guide to the care of papers and photographs. Rainbow Books.
Lua i Stíl Chicago (17ú heag.)Tuttle, Craig A. An Ounce of Preservation: A Guide to the Care of Papers and Photographs. Highland City, Fla: Rainbow Books, 1995.
Lua MLA (9ú heag.)Tuttle, Craig A. An Ounce of Preservation: A Guide to the Care of Papers and Photographs. Rainbow Books, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.