| 其他書名 | June 29-30, 1976, December 10-12, 1976 |
| 出版 | U.S. Department of Education, Office of Educational Research and Improvement, National Institute of Education, 1980 |
| URL | http://books.google.com.hk/books?id=fNr2OV5chCAC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |