| 其他書名 | Proceedings of a Workshop Held in Rio de Janeiro, Brazil from June 20 to July 1, 1977 ... |
| 出版 | EMBRAPA-Empresa Brasileira de Pesquisa Agropecuária, Serviço Nacional de Levantamento e Conservação de Solos, 1978 |
| URL | http://books.google.com.hk/books?id=DvBgAAAAMAAJ&hl=&source=gbs_api |