TY  - BOOK
AU  - Simmonds, James G,
AU  - Mann, James E.,
TI  - First look at Perturbation Theory
SN  - 9780486675510
U1  - 515.35 SIM 
PY  - 1988///
CY  - New York
PB  - Dover Publication
N1  - Includes bibliographical references (p. 121-122) and index
UR  -  http:/​/​www.loc.gov/​catdir/​description/​dover032/​97043368.html
ER  -