Описание на библ. документ: Based on both the author's theses (Ph. D.)--Cornell University, 1973, and (master's--University of London, 1965).
Физически характеристики: 1 online resource (xi, 296 pages) : illustrations.
Библиография: Includes bibliographical references (pages 275-287) and indexes.
ISBN: 0585032149
9780585032146