TY  - BOOK
AU  - Ayres, Frank
AU  - Ault, J.C.
TI  - Schaum's Outline of Theory and Problems of Differential Equations in si Metric Units
SN  - 0070990069
U1  - 515.37 AYR 
PY  - 1972///
CY  - New York
PB  - McGraw-Hill
KW  - Differential Equations
ER  -