Room, T.G. Kirkpatrick, P.B. Miniquaternion geometry: an interduction to the study of projective planes / T.G.Room, P.N.Kirkpatrick - Cambridge Cambridge University Press 1971 - viii, 176 pages Includes Reference and Index ISBN: 521079268 Subjects--Topical Terms: Geometry: Dewey Class. No.: 515 / ROO