Economics for agriculture;
Black, John D. 1883-1960.
Economics for agriculture; selected writings. Edited by James Pierce Calvin, with introductory essays. - Cambridge, Harvard University Press [1959.] - 719p. illus. 22cm. - Harvard economic studies ; v. 111 .
Includes bibliography.
59012965
Agriculture--Economic aspects
HD1411 / .B49
Economics for agriculture; selected writings. Edited by James Pierce Calvin, with introductory essays. - Cambridge, Harvard University Press [1959.] - 719p. illus. 22cm. - Harvard economic studies ; v. 111 .
Includes bibliography.
59012965
Agriculture--Economic aspects
HD1411 / .B49