APA
Williamson M., . (2011). Course in weight loss: 21 lessons for surrendering your weight forever. Australia: Hay House.
Chicago
Williamson Marianne, . 2011. Course in weight loss: 21 lessons for surrendering your weight forever. Australia: Hay House.
Harvard
Williamson M., . (2011). Course in weight loss: 21 lessons for surrendering your weight forever. Australia: Hay House.
MLA
Williamson Marianne, . Course in weight loss: 21 lessons for surrendering your weight forever. Australia: Hay House. 2011.