Barnes, D., & Wilson. F. (1976). The Design and Operation of Small Sewage Works. E. and F.N. Spoon.
शिकागो स्टाइल उद्धरणBarnes, D., और Wilson. F. The Design and Operation of Small Sewage Works. London: E. and F.N. Spoon, 1976.
एमएलए उद्धरणBarnes, D., और Wilson. F. The Design and Operation of Small Sewage Works. E. and F.N. Spoon, 1976.
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