TY  - BOOK
AU  - Ayres,Frank
TI  - Schaum's outline of theory problems of differential equations
AV  - QA303 .M46 1952
U1  - 511.33 22nd ed.
PY  - 1952///
CY  - N.Y.
PB  - Schaum
KW  - Equations
N1  - Includes index
ER  -