TY  - BOOK
AU  - Coolidge,Julian Lowell
TI  - The Elements of non-Euclidean Geometry
AV  - QA 
PY  - 2008///
CY  - Salt Lake City, UT
PB  - Project Gutenberg
KW  - Geometry, Non-Euclidean
N1  - Release date is 2008-08-20; Original publication data not identified
UR  - https://www.gutenberg.org/ebooks/26373
ER  -