एपीए उद्धरण

Ward, R. C. (1967). Principles of hydrology. McGraw-Hill.

शिकागो स्टाइल उद्धरण

Ward, R C. Principles of Hydrology. Newyork: McGraw-Hill, 1967.

एमएलए उद्धरण

Ward, R C. Principles of Hydrology. McGraw-Hill, 1967.