Gaya APA
Gupta, R, V, S, G, R.
(1993).
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Nem Chand.
Gaya MLA
Gupta, R.S, Varshney,, S.C., Gupta,, R.L..
"Theory and Design of Irrigation Struktures Volume 1, 2".
:
Nem Chand,
1993.
Text.