AU  - Ayres,Frank  .
TI  - Schaum`s Outline Of Theory And Problems Of Differential Equations In SI Metric Units / 
SN  - 0 07 099006 9
U1  - 515.35 
PY  - 1981///
CY  - Singapore
PB  - McGraw-Hill International Book Company , 
KW  - Mathematics
N1  - NULL
ER  -