Kirk, R. (1975). Exploring Crater Lake country. University of Washington Press.
Cita Chicago Style (17a ed.)Kirk, Ruth. Exploring Crater Lake Country. Seattle: University of Washington Press, 1975.
Cita MLA (8a ed.)Kirk, Ruth. Exploring Crater Lake Country. University of Washington Press, 1975.
Precaución: Estas citas no son 100% exactas.