| 其他書名 | Proceedings of a Conference Organised by the Institute for Social Research at the University of Natal, Durban, 8th-12th July 1968 |
| 出版 | University of Natal, Institute for Social Research, 1971 |
| URL | http://books.google.com.hk/books?id=v08lAQAAIAAJ&hl=&source=gbs_api |