@book{18334,
	author = {Tiwari, Mamta and Nigam, Laxmishankar},
	title = {Pracheen Bharat me rajya ki suraksha vayvastha (Prarambhik kal se tehrvin shatabdi isvi tak)},
	publisher = {Pt. Ravishankar Shukla University},
	year = {1996}
}