@book{200640,
	author = {Radhakrishnan, S.},
	title = {The principal Upaniṣads /},
	publisher = {HarperCollins,},
	year = {1994 (2000).},
	series = {Humanities paperback library},
	address = {India :},
	edition = {1st pbk. ed.},
	note = {English and Sanskrit.}
}