| 其他書名 | A Comparative and Factor Analysis of the Job Components of Selected Recreation Personnel with Inferences for a Plan of Certification and Professional Education of Recreators |
| 出版 | New York University, School of Education, 1959 |
| URL | http://books.google.com.hk/books?id=EuEknQEACAAJ&hl=&source=gbs_api |