Marquardt, H. (1983). Reflex zone therapy of the feet: A textbook for therapists ([10th, completely rev. ed.].). Thorsons.

Marquardt, Hanne. Reflex Zone Therapy of the Feet: A Textbook for Therapists. [10th, completely rev. ed.]. London: Thorsons, 1983.

Marquardt, Hanne. Reflex Zone Therapy of the Feet: A Textbook for Therapists. [10th, completely rev. ed.]. Thorsons, 1983.