TY  - BOOK
AU  - Manning, Henry Parker
TI  - Introductory Non-Euclidean Geometry
AV  - QA685.M2 
CY  - New York
KW  -  Euclid's Elements
KW  -  Geometry--Foundations
KW  -  Mathematics
KW  -  Non--Euclidean
KW  - Geometry
ER  -