This book is ISBN 01-7. 1981 3rd edition. Condition notes below.Cover - Glossy with slight yellowing. Dog-eared corners. Crease down center of back cover. Some brown spots along spine. Spine is solid, but with a slight lean from back to front. No nicks/tears. Edging - Some tanning with occasional brown spots. Owner's name written on bottom edge. Inside - All pages flat, untorn, without markings. Minimal tanning. Owner's name and brown spot on title page (photo #7).