Agricultural thought in the twentieth century.
McGovern, George S.
Agricultural thought in the twentieth century. George McGovern. - Indianapolis Bobbs-Merrill 1967. - iv, 570 p. 21 cm. - The American heritage series 71 .
Bibliography: p. xlvii-lv.
67029211
Agriculture and state--United States.
Agricultural thought in the twentieth century. George McGovern. - Indianapolis Bobbs-Merrill 1967. - iv, 570 p. 21 cm. - The American heritage series 71 .
Bibliography: p. xlvii-lv.
67029211
Agriculture and state--United States.