Dyfyniad APA
Vachon, J., & Orvell, M. (2003). John Vachon's America: Photographs and letters from the Depression to World War II. University of California Press.
Dyfyniad Arddull Chicago
Vachon, John, and Miles Orvell. John Vachon's America: Photographs and Letters from the Depression to World War II. Berkeley, Calif.: University of California Press, 2003.
Dyfyniad MLA
Vachon, John, and Miles Orvell. John Vachon's America: Photographs and Letters from the Depression to World War II. University of California Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.