ISBN 9781312099821 books & textbook
Design Considerations for Space Elevator Tether Climbers
Swan, Cathy Swan, Peter Penny, Robert "Skip" Knapman, John Glaskowsky, Peter
Lulu.com /2014-04-13 Paperback / 92 Pages
isbn-10: 1312099828 / isbn-13: 9781312099821
