ISBN 0486425665 books & textbook
Sequences, Combinations, Limits (Dover Books on Mathematics)
Gelfand, S. I. Gerver, M. L. Kirillov, A. A. Konstantinov, N. N.
Dover Publications /2002-08-30 Paperback / 160 Pages
isbn-10: 0486425665 / isbn-13: 9780486425665
