Water Pollution and Management - D.S. Malik; Sunil Kumar Umesh Bharti (Delhi Biotech Books, 2011)
D.S. Malik; Sunil Kumar & Umesh Bharti: Water Pollution and Management. Delhi. Biotech Books, 2011. 81-7622-227-3 Rs. 1700.00--(628.168MAL)
ENGLISH