Gaya APA

Haan, C, T. (1941). Statistical Methods in Hydrology (Edisi 1, Cet. 2). Ames: The Iwowa State University Press.

Gaya MLA

Haan, Charles, T.. "Statistical Methods in Hydrology". Edisi 1, Cet. 2 Ames: The Iwowa State University Press, 1941. Text.