| 其他書名 | Formal, Nonformal, Informal, and Self-directed |
| 出版 | ERIC Clearinghouse on Adult, Career, and Vocational Education, the National Center for Research in Vocational Education, the Ohio State University, 1982 |
| URL | http://books.google.com.hk/books?id=Aj1hA6FscqUC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |