Cita APA (7a ed.)
Howell, E. M. (1960). Hermann Stieffel: Soldier artist of the west. Smithsonian Institution.
Cita Chicago Style (17a ed.)
Howell, Edgar M. Hermann Stieffel: Soldier Artist of the West. Washington: Smithsonian Institution, 1960.
Cita MLA (9a ed.)
Howell, Edgar M. Hermann Stieffel: Soldier Artist of the West. Smithsonian Institution, 1960.
Precaución: Estas citas no son 100% exactas.