@book{bhlitem111704, title = {On eastern Empidonaces with particular reference to variation in E. traillii }, copyright = {Not provided. Contact Holding Institution to verify copyright status.}, url = {https://www.biodiversitylibrary.org/item/111704}, note = {https://www.biodiversitylibrary.org/bibliography/52155}, publisher = {Toronto, Royal Ontario Museum, 1953}, author = {Snyder, L. L. (Lester Lynne), and Royal Ontario Museum.}, year = {}, pages = {40}, keywords = {1953|Alder flycatcher|canimp|Empidonax|Ontario|}, }