TY  - BOOK
AU  - Symposium on Numerical Approximation,1958.
AU  - Langer, Rudolph E., ed.
TI  - On numerical approximation - proceedings
T2  - Publication No.1
U1  - 511.4 
PY  - 1959///
CY  - Madison
PB  - Univ. of Wisconsin P
ER  -