@book{30316,
	author = {SEN , KALIDAS },
	title = {The elements of  logic deductive /},
	publisher = {DAS GUPTA & CO..,},
	year = {1954},
	series = {Clarendon Press series},
	address = {CALCUTTA :},
	edition = {Ninth edition corrected and revised},
	note = {Publisher's advertisements at end}
}