Stenzel, F., & Rockwell, C. (1972). Cleveland Rockwell, scientist and artist, 1837-1907. Oregon Historical Society.
Cita Chicago Style (17a ed.)Stenzel, Franz, y Cleveland Rockwell. Cleveland Rockwell, Scientist and Artist, 1837-1907. Portland: Oregon Historical Society, 1972.
Cita MLA (8a ed.)Stenzel, Franz, y Cleveland Rockwell. Cleveland Rockwell, Scientist and Artist, 1837-1907. Oregon Historical Society, 1972.
Precaución: Estas citas no son 100% exactas.