Harland, Jack R. Crops & man / Jack R. Harlan - Madison, Wis. : American Society of Agronomy, 1975 - xi, 295 p. : ill. ; 24 cm. - Foundations for modern crop science series . Includes index Bibliography : p. 271-286 ISBN: 089118032X LCCN: 74-21919 Subjects--Topical Terms: Plants, Cultivated--HistoryAgriculture--History