其他書名 | A Guide for the Operation and Use of the Portable Demonstration Channel and Models of Hydraulic Structures |
出版 | U.S. Department of Agriculture, Agricultural Research Service, Soil and Water Conservation Research Division, 1960 |
URL | http://books.google.com.hk/books?id=POZn48uvvgkC&hl=&source=gbs_api |
EBook | FULL_PUBLIC_DOMAIN |