TY - BOOK AU - Hennessy, Jeff T. TI - Trampolining SN - 0697070344 U1 - GC 796.47 H392 1968 PY - 1968/// CY - Dubuque, IA PB - Wm.C. Brown PUblishers KW - Trampolining KW - Exercise N1 - Includes bibliographical references and index ER -