@book{2972,
	author = {Cederberg, Judith N.},
	title = {A course in modern geometries / },
	publisher = {Springer,},
	year = {1989.},
	series = {(Undergraduate texts in mathematics)},
	address = {New York [u.a.] : },
	edition = {Corr. 2. print.},
	note = {Bibliography: p. 216 - 221.}
}