TY  - BOOK
AU  - Percy, John R
TI  - Understanding variable stars
SN  - 978-0-521-23253-1
PY  - 2007///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Pulsating variable stars
KW  - Rotating variable stars
KW  - Stars
KW  - Variable stars
ER  -