Norris, Christopher M. The complete guide to abdominal training / Christopher M. Norris . - 3rd ed. - London : A & C Black, 2009. - vii, 232 p. : ill.(some col.) ; 25cm. Includes index. ISBN: 9781408110218 Subjects--Topical Terms: Abdominal exercise.abdomen--Muscles. Dewey Class. No.: 613.711