Citazione Stile APA (7a Edizione)

Stern, R. M., & Ray, W. J. (1975). Programmed learning aid for biofeedback and the control of internal bodily activity. Learning Systems.

Citazione stile Chigago Style (17a edizione)

Stern, Robert M., e William J. Ray. Programmed Learning Aid for Biofeedback and the Control of Internal Bodily Activity. Homewood, Ill: Learning Systems, 1975.

Citatione MLA (9a ed.)

Stern, Robert M., e William J. Ray. Programmed Learning Aid for Biofeedback and the Control of Internal Bodily Activity. Learning Systems, 1975.