Não informado. (1993). Groundwater Monitoring and Remendiation. Ground Water Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Groundwater Monitoring and Remendiation. Dublin, Ohio: Ground Water Publishing, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Groundwater Monitoring and Remendiation. Ground Water Publishing, 1993.
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