TY  - BOOK
AU  - AYRES, FRANK JR.
TI  - Schaum's Outline of Theory and Problems of Differential Equations in 51 Met: Schaum's Outline of Theory and Problems of Differential Equations in 51 Met, London : McGraw-Hill, 1972
U1  - 517.38 
PY  - 1972///
CY  - London
PB  - McGraw-Hill
ER  -