Hughes, D. R. Projective planes/ [by] D. R. Hughes [and] F. C. Piper. - New York: Springer-Verlag, [1973]. - x, 291 p.: illus., 24 cm. - Graduate texts in mathematics; 6. . Includes bibliographies. ISBN: 0387900438 0387900446 (pbk) 3540900446 (Berlin pbk.) LCCN: 72075719 //r892 Subjects--Topical Terms: Geometry, Projective.Rings (Algebra) Dewey Class. No.: 516.8 / H893p