Gaya APA
Sehgal, P.
(1977).
Design of irrigation structures
(
1st ed.)
.
Nai Sarak, Delhi:
Khanna Publishers.
Gaya MLA
Sehgal, P.P..
"Design of irrigation structures".
1st ed.
Nai Sarak, Delhi:
Khanna Publishers,
1977.
Text.