TY - REP AU - Rasmussen,W.D. ED - Agricultural Literature: Proud Heritage-Future Promise. A Bicentennial Symposium TI - The mecahnization of American agriculture [History] U1 - 78-285782 PY - 1977/// KW - Equipment KW - History KW - USA N1 - Ref T2 - Fusonie, A.; Moran,-L. (eds.). Associates of the National Agricultural Library; Agricultural History Society. Agricultural literature: proud heritage-future promise. A Bicentennial Symposium, September 24-26, 1975. Washington, D.C. (USA). Associates of the National Agricultural Library. 1977. p. 295-315 ER -