TY  - BOOK
AU  - Bobola, Roberto 
TI  - Non-euclidean geometry: a critical and historical study of its development
SN  - 9780486600277
U1  - 514.124 
PY  - 1914///
CY  - New York
PB  - Dover
KW  - NON-EUCLIDEAN GEOMETRY
N1  - With a supplement containing the Dr. G.B. Halsted translations of The science of absolute space by J. Bolyai, the theory of parallels by N. Lobachevski
ER  -