Citazione Stile APA (7a Edizione)

Gray, D. (1973). Reflections on the recreation and park movement: A book of readings. W.M.C. Brown.

Citazione stile Chigago Style (17a edizione)

Gray, David. Reflections on the Recreation and Park Movement: A Book of Readings. David Gray: W.M.C. Brown, 1973.

Citatione MLA (9a ed.)

Gray, David. Reflections on the Recreation and Park Movement: A Book of Readings. W.M.C. Brown, 1973.