TY  - BOOK
AU  - Murdock,James A.
TI  - Perturbations: theory and methods 
SN  - 0471612944 (alk. paper)
AV  - QA 871 .M87 1991
U1  - 515/.35 20
PY  - 1991///
CY  - New York
PB  - Wiley
KW  - Perturbation (Mathematics)
N1  - Includes bibliographical references and index
ER  -