MCGRAW-HILL ENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY : AN INTERNATIONAL REFERENCE WORK IN FIFTEEN VOLUMES INCLUDING AN INDEX VOLUME 11 - NEW YORK MCGRAW-HILL 1977 - 0 0 1 0 0 ISBN: 0-07-079590-8 Source: 79-228 Subjects--Topical Terms: TECHNOLOGY(APPLIED SCIENCES) LC Class. No.: Q121.M3 1977