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- [7] EVALUATION OF METHODS FOR REPORTING COLIFORM DENSITY AMERICAN JOURNAL OF PUBLIC HEALTH AND THE NATIONS HEALTH, 1956, 46 (08): : 987 - 993
- [9] RECOVERY OF COLIFORM BACTERIA FROM FRESH-WATERS - COMPARISON OF MULTIPLE TUBE AND MEMBRANE-FILTER TECHNIQUES ENVIRONMENTAL TECHNOLOGY LETTERS, 1988, 9 (11): : 1257 - 1260