| 其他書名 | A Summary of American Legislation for Public Outdoor Recreation, 1915-1927, Together with a Study of the Association Between Recreation Areas and Juvenile Delinquency in Manhattan, 1920 |
| 出版 | Columbia University Press, 1929 |
| URL | http://books.google.com.hk/books?id=8gPnAAAAMAAJ&hl=&source=gbs_api |