Drainage and Reclamation Institute of Pakistan. (1989). Journal of drainage and reclamation: DRIP. Drainage and Reclamation Institute of Pakistan.
Chicago-referens (17:e uppl.)Drainage and Reclamation Institute of Pakistan. Journal of Drainage and Reclamation: DRIP. Tando Jam: Drainage and Reclamation Institute of Pakistan, 1989.
MLA-referens (8:e uppl.)Drainage and Reclamation Institute of Pakistan. Journal of Drainage and Reclamation: DRIP. Drainage and Reclamation Institute of Pakistan, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.