Gaya APA

Seyhan, E. et al (1993). Dasar-dasar Hidrologi . Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Seyhan, Ersin. et al. "Dasar-dasar Hidrologi". Yogyakarta: Gadjah Mada University Press, 1993. Text.