APA
Hittleman R., . (1971). Yoga;28 days exercise plan. : .
Chicago
Hittleman Richard, . 1971. Yoga;28 days exercise plan. : .
Harvard
Hittleman R., . (1971). Yoga;28 days exercise plan. : .
MLA
Hittleman Richard, . Yoga;28 days exercise plan. : . 1971.