playgrounds 
| Title |
Date |
Author |
|---|---|---|
| An Urban Schoolyard as a Place for Play: Ethnographic Study of the Ecology of a Schoolyard | Jan 01, 1991 | Harouna Ba (Environmental Psychology Program, City University of New York) |
| The Hidden Structure of Children's Play in an Urban Environment | Jan 01, 1976 | Stephen Grabow, PhD (University of Kansas), Neil J. Salkind, PhD (University of Kansas) |