Iyengar, B.K.S. Light on pranayama : the yogic art of breathing / B.K.S. Iyengar - New York : Crossroad , 1981. - xxiv, 294 p. : ill. ; 22 cm. Includes index. ISBN: 0826400485 LCCN: 81000609 Subjects--Topical Terms: Breathing exercisesHatha yoga LC Class. No.: RA782 / .I95 1981 Dewey Class. No.: 613.192 IYE