@book{300864,
	author = {Fਰਮਾ, ਰਾਜੀਵ, ਂਚ.},
	title = {ਵਾਤਾਵਰਣਿਕ ਪ੍ਰਦੂFਣ},
	publisher = {  21 ਸੈ੍ਵੂਚੂਰੀ},
	year = {2015},
	address = {ਪਟਿਆਲਾ}
}