@book{123032,
	author = {Bolzano, Bernard, and George, Rolf,},
	title = {Theory of science:},
	publisher = {Blackwell,},
	year = {1972.},
	address = {Oxford,},
	note = {Translation and abridgement of Wissenschaftslehre. 4 Bd. Sulzbach, [s.n.], 1837.}
}