1996 - Do Lemmings Commit Suicide Beautiful Hypotheses and Ugly Facts (Hardcover) → Paperback ISBN-13: 9780195097856 ISBN-10: 0195097858 Genres: Crafts, Hobbies & Home, Science & Math ? 1996 - Do Lemmings Commit Suicide Beautiful Hypotheses and Ugly Facts (Paperback) → Hardcover ISBN-13: 9780195097863 ISBN-10: 0195097866 Genres: Science & Math, Engineering & Transportation ? |