TY  - BOOK
AU  - Bonola, Roberto,
TI  - Noneuclidean geometry: : a critical and historical study of its developments
U1  - 514.13 
PY  - 1955///
CY  - New York
PB  - Dover
KW  - GEOMETRIA NO EUCLIDIANA
KW  - GEOMETRIA
N1  - Incluye "The science of absolute space" John Bolyai y "The theory of parallels" Nicholas Lobachevski
ER  -