TY  - BOOK
AU  - Achieser, N. I.
AU  - Hyman, Charles J. ; tr.
TI  - Theory of approximation
U1  - 515.73 
PY  - 1956///
CY  - New York
PB  - Frederick Ungar Publishing
N1  - "Translated from the Russian by Charles J. Hyman"
ER  -