principles and practices, handbook of information for the student of agriculture Hughes, Harold D. creator creator Henson, Edwin R. nyu New York The Macmillan Company 1946 eng Eng x, 816p.: ill., figs., tables, maps; 20 cm. Harold D. Hughes and Edwin R. Henson Includes bibliographical references and index. Agriculture Crops cultivation Agriculture Field crops Rotation Agriculture Plant diseases 633 HUG BD-DhIDS 260813 20260818111720.0 eng