@book{16710,
	author = {Verma, PS. and Agarwal, VK.},
	title = {Principles of ecology: environmental biology},
	publisher = {S. Chand},
	year = {1989},
	address = {Delhi},
	note = {Book lost & 3 times cost (Rs 35 x 3 = 105) recovered vide challan No.3740 dated 05.12.19}
}