Smock, R. M. Apples and Apple products / R. M. Smock and A. M. Neubert. - New York : Interscience, 1950. - xvi, 486 p. : ill. ; 24 cm. - Economics crops . Includes index 47 47 Subjects--Topical Terms: Apples Dewey Class. No.: 634.1 / S72a