| 其他書名 | A Bibliography Based on the Acquisitions of the Educational Materials Center from April 16, 1966 Through December 31, 1968 |
| 出版 | U.S. Department of Health, Education and Welfare, Office of Education, 1970 |
| URL | http://books.google.com.hk/books?id=GFtGAQAAMAAJ&hl=&source=gbs_api |