Hitchcock, C. L., & Cronquist, A. (1973). Flora of the Pacific Northwest: An illustrated manual. University of Washington Press.
Cita Chicago Style (17a ed.)Hitchcock, C. Leo, y Arthur Cronquist. Flora of the Pacific Northwest: An Illustrated Manual. Seattle: University of Washington Press, 1973.
Cita MLA (8a ed.)Hitchcock, C. Leo, y Arthur Cronquist. Flora of the Pacific Northwest: An Illustrated Manual. University of Washington Press, 1973.
Precaución: Estas citas no son 100% exactas.