Wehr, J. D., & Sheath, R. G. (2003). Freshwater algae of North America: Ecology and classification. Academic Press.
Cita Chicago Style (17a ed.)Wehr, John D., y Robert G. Sheath. Freshwater Algae of North America: Ecology and Classification. San Diego, Calif: Academic Press, 2003.
Cita MLA (9a ed.)Wehr, John D., y Robert G. Sheath. Freshwater Algae of North America: Ecology and Classification. Academic Press, 2003.
Precaución: Estas citas no son 100% exactas.