Mc Graw-Hill Book Co. The PUBLISHERS OF BOOKS FOR Electrical World Engineering News-Record Power Engineering and Mining Journal-Press Chemical and Metallurgical Engineering Electric Railway Journal Coal Age American Machinist Ingenieria Internacional Electrical Merchandising BusTransportation Journal of Electricity and Western Industry Industrial Engineer CREDITS AND COLLECTIONS BY THEODORE N. BECKMAN Assistant Professor of Business Organization, FIRST EDITION MCGRAW-HILL BOOK COMPANY, INC. |