Varghese, P.C. creator xxu New Delhi Prentice-Hall of India Pvt.Ltd 2005 eng xix.267p.: ill;. 22cm P.C. Varghese. Includes index.(p265-p267) Building materials 691 8120328485 (paperback) 9788120328488 (paperback) http://www.amazon.com/exec/obidos/ASIN/8120328485/chopaconline-20 http://www.amazon.com/exec/obidos/ASIN/8120328485/chopaconline-20 120516 20180116192329.0