TY  - BOOK
AU  - Coolidge,Julian Lowell,1873-1954
TI  - The Elements of non-Euclidean Geometry
AV  - QA 
PY  - 2008///
PB  - Project Gutenberg
KW  - Geometry, Non-Euclidean
N1  - Project Gutenberg; Freely available; Electronic text
UR  - http://www.gutenberg.org/etext/26373
UR  - http://www.gutenberg.org/license
ER  -