APA (7 वां संस्करण) प्रशस्ति पत्र
Challa, S. N. M. (2002). Water resources engineering: Principles and practice (2nd ed.). New Age International.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Challa, Satya Narayan Murty. Water Resources Engineering: Principles and Practice. 2nd ed. Kolkata: New Age International, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Challa, Satya Narayan Murty. Water Resources Engineering: Principles and Practice. 2nd ed. New Age International, 2002.
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