their sources, production , and utilization Panshin, A. J. creator Harrar, A. J. text New York McGraw-Hill Book Company Inc. 1962 2nd. ed. monographic vii,538 p. : ill Includes index A. J. Panshin, E. S. Harrar and J. S. Bethel Manufactures TS805.P34 .F67 UOEL 000 20150506084732.0