00651cam a2200205 4500 503738212 TxAuBib 20010831120000.0 920124t19791956||||||||||||||||||||eng|u 9780394445601 0394445600 TxAuBib Olson, Sigurd F., 1899- Singing wilderness / Sigurd F. Olson ; illustrations by Francis Lee Jaques. New York : Knopf, 1979. ©1956. ix, 244 p. : ill., map ; 22 cm. 20010831. Natural history Middle West.