Verlag: Critical Thinking Co, 1975
ISBN 10: 0894556444 ISBN 13: 9780894556449
Zustand: Good. Good condition. Book 1. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.
Verlag: Critical Thinking Co, 1977
ISBN 10: 0894556452 ISBN 13: 9780894556456
Zustand: USED_VERYGOOD. Very Good condition. A copy that may have a few cosmetic defects. May also contain a few markings such as an owner's name, short gifter's inscription or light stamp.