Gaya APA

Wilson, E., Purbohadiwidjoyo, . (1993). Hidrologi Teknik ( Engineering hydrology) (edisi 4). Bandung: ITB.

Gaya MLA

Wilson, E.M.., Purbohadiwidjoyo, . "Hidrologi Teknik ( Engineering hydrology)". edisi 4 Bandung: ITB, 1993. Text.