(2000). Freshwater ecoregions of North America: A conservation assessment. Island press.
Citación estilo ChicagoFreshwater Ecoregions of North America: A Conservation Assessment. Washington, D.C: Island press, 2000.
Cita MLAFreshwater Ecoregions of North America: A Conservation Assessment. Island press, 2000.
Warning: These citations may not always be 100% accurate.