TY  - BOOK
AU  - Simmons,George Finlay
AU  - Robertson,John S.
TI  - Differential equations: with applications and historical notes 
SN  - 0071128077 (pbk.)
AV  - QA372 .S56 1991
U1  - 22 515.35
PY  - 1991///
CY  - New York
PB  - McGraw-Hill
KW  - Differential equations
N1  - Includes bibliographical references and index
ER  -