Churney, M., & Williams, S. (1996). Bogs, meadows, marshes & swamps: A guide to 25 wetland sites of Washington State. Mountaineers.
Cita Chicago Style (17a ed.)Churney, Marie, y Susan Williams. Bogs, Meadows, Marshes & Swamps: A Guide to 25 Wetland Sites of Washington State. Seattle, Wash.: Mountaineers, 1996.
Cita MLA (8a ed.)Churney, Marie, y Susan Williams. Bogs, Meadows, Marshes & Swamps: A Guide to 25 Wetland Sites of Washington State. Mountaineers, 1996.
Precaución: Estas citas no son 100% exactas.