Rudolph, N. (1974). Workyards: Playgrounds planned for adventure. Teachers College Press.
Citazione stile Chigago Style (17a edizione)Rudolph, Nancy. Workyards: Playgrounds Planned for Adventure. New York: Teachers College Press, 1974.
Citatione MLA (8a ed.)Rudolph, Nancy. Workyards: Playgrounds Planned for Adventure. Teachers College Press, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.