Counter, L. W. (1988). Septitank Systems Effects On Ground Water Quality Larry W. Canter And Robert C. Knox. Lewis.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCounter, Larry W. Septitank Systems Effects On Ground Water Quality Larry W. Canter And Robert C. Knox. Lewis, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCounter, Larry W. Septitank Systems Effects On Ground Water Quality Larry W. Canter And Robert C. Knox. Lewis, 1988.
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