@book{200392,
	author = {Singhanial, Nitin},
	title = {WBCS General Studies Manual for Preliminary and Main Examination/},
	publisher = {Mc Graw Hill},
	year = {2023},
	address = {Anjana Complex No:5/90 A, Butt Road, St. Thomas Mount, Chennai-600016},
	edition = {7th Edition}
}