Performance characteristics of enclosed screw conveyors handling shelled corn and soybeans /
White, G.M.(Gerald Martin),author.
Schaper, Lewis A.,author.
Ross, I. J.(Ira J.),author.
Isaacs, G.W.(Gerald William),author.
Purdue University.Agricultural Experiment Station,publisher.
Title from front cover.
Includes bibliographical references (page 11).