APA-čujuhus (7. p.)
Rudolph, N. Workyards: Playgrounds Planned for Adventure. Columbia University, Teachers College.
Chicago-čujuhus (17. p.)
Rudolph, Nancy. Workyards: Playgrounds Planned for Adventure. Nueva York, EUA: Columbia University, Teachers College.
MLA-čujuhus (9. p.)
Rudolph, Nancy. Workyards: Playgrounds Planned for Adventure. Columbia University, Teachers College.
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