@book{103081,
	author = {Sheelwant Singh and Sarika},
	title = {General studies paper I and II topic wise 20 years solved papers  :},
	publisher = {LexisNexis },
	year = {2016},
	series = {CATAPULT test prep series},
	address = {Gurgaon },
	edition = {Rev. ed.}
}