Pareto, Vilfredo. The Mind and Society: A Treatise on General Sociology - Four Volumes Bound As Two. New York: Dover Publications, Inc., 1963. 
Former library set, clean texts, bindings, fine, includes dust jackets. 2033 pp., complete in two volumes. Very good in good dust-jacket. Hardcover.
"In 1916 the great Italian social theorist Vilfredo Pareto (1848-1923) published his monumental work "Trattato di Sociologia Generale." It was soon translated into most of the major European languages, for scholars recognized that this summation of Pareto's system was of equal importance with the classical works of J. S. Mill, Comte, Spencer, and LePlay. In 1935 the English translation appeared under the title "Mind and Society." Since that time Pareto's work has been recognized in the English-speaking world as one of the great modern systems of analysis of behavior, as a work of great depth and profundity, with extremely wide implications for both social theory and practice." - publisher.