Recommended practice for backflow prevention and cross-connection control.
- Colorado : American Water Works, 1966.
- 22p. ; cm.
- AWWA Manual M14 .
0898670721
Backsiphonage (Plumbing) --Prevention.
Cross-connections (Plumbing) --Standards.
TH6521.R311
0898670721
Backsiphonage (Plumbing) --Prevention.
Cross-connections (Plumbing) --Standards.
TH6521.R311