Sherwood, G. H. (1920). Free nature education by the American Museum of Natural History in public schools and colleges: History and status of museum instruction and its extension to the schools of greater New York and vicinity. The Museum.
Cita Chicago Style (17a ed.)Sherwood, George Herbert. Free Nature Education by the American Museum of Natural History in Public Schools and Colleges: History and Status of Museum Instruction and Its Extension to the Schools of Greater New York and Vicinity. New York: The Museum, 1920.
Cita MLA (8a ed.)Sherwood, George Herbert. Free Nature Education by the American Museum of Natural History in Public Schools and Colleges: History and Status of Museum Instruction and Its Extension to the Schools of Greater New York and Vicinity. The Museum, 1920.