@book{4759,
	author = {Theraja, B. L. and Theraja, A.K.},
	title = {A textbook of Electrical technology in S.I. system of units: Electronic devices and circuits- Vol. 4 /},
	publisher = {Nirja construction & development Co., },
	year = {1994.},
	address = {New-Delhi: },
	edition = {21st ed.}
}