NUGROHO, W. (1988). Teknik Drainasi / Nugroho Ws. Biro Penerbit FT UGM.
Chicagoスタイル(17版)引用形式NUGROHO, WS. Teknik Drainasi / Nugroho Ws. Biro Penerbit FT UGM, 1988.
MLA(8版)引用形式NUGROHO, WS. Teknik Drainasi / Nugroho Ws. Biro Penerbit FT UGM, 1988.
警告: この引用は必ずしも正確ではありません.