New York: Academic Press, Two volumes. First editions (from 1969 and 1970). Cloth hardbounds in dust jackets, 322 + 566 pp., clean unmarked texts, Near Fine copy in Very Good+ dust jacket, light discoloration to some pages of the texts, some soil/discoloration to the dust jacket, minor rubbing or wear to the dust jackets at the tips and edges including some creasing, closed tears, and a bit of loss. Both volumes signed and inscribed by the author. Dust jackets housed in archival dust jacket protectors. Digital images sent upon request. Near Fine / very good +.