Austin, D. R. (1999). Therapeutic recreation: Processes and techniques (4th ed.). Sagamore Pub.
Citazione stile Chigago Style (17a edizione)Austin, David R. Therapeutic Recreation: Processes and Techniques. 4th ed. Champaign, Ill: Sagamore Pub, 1999.
Citatione MLA (9a ed.)Austin, David R. Therapeutic Recreation: Processes and Techniques. 4th ed. Sagamore Pub, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.