Reference.
Hardcover three ring binder includes CD-ROM and instruction manual, all enc losed in

Reference.
Hardcover three ring binder includes CD-ROM and instruction manual, all enc losed in box. Appears to have never been used. Product Description--This CD-ROM disk combines coverage of 75 major scientific and engineering discipli nes, from the "McGraw-Hill Concise Encyclopedia of Science and Technology, 2nd Edition" with the 100, 000 terms and 117, 500 definitions in the "McGraw-Hill Dictionary of Scientific and Technical Terms, 4th Edition".