An investigation into the drainage problem of metropolitan Dhaka and its solution. - Dhaka : Bangladesh Engineering & Technological Services (BETS) , 1990 - 39p. : ill. ; 29 cm. - BETS R&D publication No. 4 . Includes bibliographical references. Subjects--Topical Terms: Drainage--BangladeshTowns Gov. Doc. Class. No.: BAN BETS RDP-4