BERLEKOM, H. B. V. International courses in hydraulic and sanitary engineering: Rivers. Delft Netherland.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBERLEKOM, H.A. Berdenis Van. International Courses in Hydraulic and Sanitary Engineering: Rivers. [sl]: Delft Netherland.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBERLEKOM, H.A. Berdenis Van. International Courses in Hydraulic and Sanitary Engineering: Rivers. Delft Netherland.
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