| Type |  Book |
| ชื่อเรื่อง | Environmental aspects of irrigation and drainage, University of Ottawa -- Ottawa, Ontario, July 21-23, 1976 / sponsored by American Society of Civil Engineers, Irrigation and Drainage Division ... [et al.] |
| พิมพลักษณ์ | New York : American Society of Civil Engineers, c1976 |
| รูปเล่ม | x, 739 p |
| หัวเรื่อง | Drainage --United States --Congresses [] |
| | Irrigation --Envionmental aspects --Congresses [] |