TY  - BOOK
AU  - Ryan, Patrick J
TI  - Euclidean and non-Euclidean geometry : an analytical approach
SN  - 521256542
SN  - 85017146
U1  - QA445 .R93 1986 516 
PY  - 1986///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Geometry, Non-Euclidean
KW  - Geometry, Plane
N1  - Includes index. Bibliography: p. 210-211
ER  -