Mathematics Cohomology Operations (AM-50), Volume 50: Lectures by N.E. Steenrod. (AM-50) David B.A. Epstein Series: Annals of Mathematics Studies Paperback Price: $67.50 / £56.00 ISBN: 9780691079240 Published: Oct 21, 1962 Copyright: 1963 Pages: 152 Size: 6 x 9 in. ebook Price: $67.50 / £56.00 ISBN: 9780691079240 Published: Oct 21, 1962 Copyright: 1963 Pages: 152 Size: 6 x 9 in. Buy This Download Cover Share Overview Written and revised by D. B. A. Epstein.