Sawyer, J. O. (2006). Northwest California: A natural history. University of California Press.
Cita Chicago Style (17a ed.)Sawyer, John O. Northwest California: A Natural History. Berkeley: University of California Press, 2006.
Cita MLA (8a ed.)Sawyer, John O. Northwest California: A Natural History. University of California Press, 2006.
Precaución: Estas citas no son 100% exactas.