ISBN 0821851071 books & textbook
Recent Developments in Geometry: Proceedings of the Ams Special Session in Geometry November 14-15, 1987 (Contemporary Mathematics)
Cheng, S. Y. Choi, H. Greene, R. E.
Amer Mathematical Society /1989T Paperback
isbn-10: 0821851071 / isbn-13: 9780821851074
