共 50 条
- [34] TREATMENT OF TANNERY EFFLUENTS WITH FLOCCULANTS JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION, 1978, 73 (02): : 70 - 76
- [39] TRENDS IN IRRIGATION DEVELOPMENT PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS, 1972, 51 (APR): : 763 - &
- [40] TRENDS IN IRRIGATION DEVELOPMENT PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS, 1971, 50 (NSEP): : 65 - &