TY  - BOOK
AU  - Alling Norman L
AU  -  Greenleaf Newcomb
TI  - Foundations of the theory of klein surfaces
T2  - Lecture Notes in Mathematics; 219
U1  - B398, L1 
PY  - 1971///
CY  - Berlin
PB  - Springer-Verlag         
KW  - Klein surfaces
N1  - bibliography 112-114p
ER  -