Subramanyam K, . (2018). Engineering Hydrology, 4th Ed. : McGraw Hill Education Pvt. Ltd.
Subramanyam K, . 2018. Engineering Hydrology, 4th Ed. : McGraw Hill Education Pvt. Ltd.
Subramanyam K, . Engineering Hydrology, 4th Ed. : McGraw Hill Education Pvt. Ltd. 2018.