@book{122232,
	author = {Ajdukiewicz, Kazimierz.},
	title = {Problems and theories of philosophy.},
	publisher = {Cambridge University Press},
	year = {[1973]},
	address = {[London,},
	note = {Translation of Zagadnienia i kierunki filozofii.},
	url = {http://www.loc.gov/catdir/enhancements/fy0909/72097878-d.html}
}