Chicago: University of Chicago Press, 1969. First Edition Thus; Second Printing. Softcover. Book condition is Very Good in original wraps. Some discoloration/foxing to page edges. Minor foxing inside covers. Text is clean and unmarked. ; International Encyclopedia of Unified Sciences; 8vo 8" - 9" tall.
Cleveland: Press of Case Western Reserve University, 1968. Revised Edition. Hardcover. Book condition is Very Good; with a Very Good dust jacket. Some weak foxing to page edges. Text is clean and unmarked. ; 8vo 8" - 9" tall.
Chicago: The University of Chicago Press, 1980. First Edition; First Printing. Softcover. Book condition is Very Good in wraps. Slight foxing to covers. Some staining and edge wear to exterior. Text is clean and unmarked. ; 8vo. 9"h x 6"w. In this issue: Is Ethics a Science?: "Ethics - a......