Encyclopedia of applied physics: Edited by George L Trigg, associate editors: Eduardo S Vera and Walter Greulich managing editor: Edmund H Immergut. VCH Verlagsgesellschaft mbH. VCH Publ. Inc. New York. VCH publishers (UK) Ltd, 8 Wellington Court, Cambridge CB1 1HZ. 21 volumes; with 3 or 4 volumes published every year since 1991 and expected to be completed in 1997. ISBN 1-56081-058-0 (set). Hardcover; each volume of ca. 600–650 pages with a further cumulative index for volumes 1–21. Individual volume price £165.00 with reduced subscription price for complete set by 18% to £135.00 per volume