Hughes, D. R. Projective planes [by] D. R. Hughes [and] F. C. Piper. - New York, Springer-Verlag [1973] - x, 291 p. illus. ISBN: 0387900438 0387900446 (pbk.) 3540900446 (Berlin pbk.) Subjects--Topical Terms: Geometry, Projective.Rings (Algebra) Universal Decimal Class. No.: 514.14 / HUG