| 其他書名 | U.S. Department of Health, Education, and Welfare. Office of Education. Division of International Studies and Services .... Educational data : Bolivia |
| 出版 | U.S. Government Printing Office, 1952 |
| URL | http://books.google.com.hk/books?id=TU9dQwAACAAJ&hl=&source=gbs_api |