Gaya APA

SEYHAN, E. (1990). DASAR-DASAR HIDROLOGI (1). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

SEYHAN, ERSIN. "DASAR-DASAR HIDROLOGI". 1 Yogyakarta: Gadjah Mada University Press, 1990. Text Book Sipil.