O'brien, G.
Agricultural economics / G. O'brien. - Bogra : A. H. College, 1966. - 154 p. ; 21 cm.
Agriculture -- Economic aspects
338.1 / OBA
Agricultural economics / G. O'brien. - Bogra : A. H. College, 1966. - 154 p. ; 21 cm.
Agriculture -- Economic aspects
338.1 / OBA
