TY - BOOK AU - BIRDIE G. S. AND BIRDIE J. S. TI - WATER SUPPLY AND SANITARY ENGINEERING INCLUDING ENVIRONMENT ENGINEERING SN - 81-87433-310 U1 - 628 PB - DHANPAT RAI PUBLISHING CO. LTD., NEW DELHI KW - ELEM. OF CIVIL ENGINEERING N1 - 10547 ER -