1985 - Graphical Evolution [Wiley-Interscience Series in Discrete Mathematics] (Hardcover) ISBN-13: 9780471815778 ISBN-10: 0471815772 Genre: Science & Math ? 1973 - Graphical Enumeration (Hardcover) ISBN-13: 9780123242457 ISBN-10: 0123242452 Genres: Science & Math, Engineering & Transportation ? |