Boserup, Ester. The conditions of agricultural growth : the economics of agrarian change under population pressure / by Ester Boserup ; with a foreword by Nicholas Kaldor. - London : G. Allen & Unwin, c1965. Bibliographical footnotes. LCCN: 65085646 Subjects--Topical Terms: Agriculture -- Economic aspects.--Agriculture -- Economic aspects.Population. LC Class. No.: HD1445 / .B65