@book{65016,
	author = {Vasishtha, A.R. and Rastogi, Sugam},
	title = {Krishna's text book on algebra and trigonometry as per U.P. unified syllabus w.e.f. 2011-12/},
	publisher = {Krishna Prakashan},
	year = {2011},
	address = {Meerut},
	edition = {20th ed}
}