Cita APA (7a ed.)
Aton, J. M. (2010). John Wesley Powell: His life and legacy. Bonneville Books.
Cita Chicago Style (17a ed.)
Aton, James M. John Wesley Powell: His Life and Legacy. Salt Lake City: Bonneville Books, 2010.
Cita MLA (9a ed.)
Aton, James M. John Wesley Powell: His Life and Legacy. Bonneville Books, 2010.
Precaución: Estas citas no son 100% exactas.