TY  - BOOK
AU  - Kells,Lyman M.
TI  - Differential equations: a brief course with applications
AV  - QA372 .K44
U1  - 517/.55 
PY  - 1968///]
CY  - New York
PB  - McGraw-Hill
KW  - Differential equations
N1  - Bibliographical footnotes
ER  -