Fox, C. P. (1990). Working horses: Looking back 100 years to America's horse-drawn days : with 300 historic photographs. Heart Prairie Press.
Cita Chicago Style (17a ed.)Fox, Charles Philip. Working Horses: Looking Back 100 Years to America's Horse-drawn Days : With 300 Historic Photographs. Whitewater, Wis.: Heart Prairie Press, 1990.
Cita MLA (8a ed.)Fox, Charles Philip. Working Horses: Looking Back 100 Years to America's Horse-drawn Days : With 300 Historic Photographs. Heart Prairie Press, 1990.
Precaución: Estas citas no son 100% exactas.