(029770) Westbrook, A, and Ratti, O. Aikido And The Dynamic Sphere: An Illustrated Introduction. Rutland, VT: Charles E. Tuttle, 1978. 15th Printing. Hardcover. 8vo. 375 pages. Fine in Fine DJ. B&W Illustrations. Book is housed in a VG+ thin cardboard slipcase. ISBN: 0804800049 (Aikido, Martial Arts)
