TY  - BOOK
AU  - CAMPBELL (D F)
TI  - Short course on differential equations
U1  - 513/25 
PY  - 1931///
CY  - London
PB  - The Macmillan Co Ltd.
KW  - Short
KW  - on
KW  - equations
KW  - differential
KW  - course
ER  -