.245
a	Observing variable stars
b	: aguide for the beginner
h	Buku-Bacaan Pengaya Nonfiksi
.020
a	0521321131
.100
a	LEVY, David H.
.005
a	20090819190210
.260
a	Cambridge
b	Cambridge University Press
c	1989
.041
a	Inggris
.084
a	523.844 LEV
.300
a	198 halaman : gambar, tabel
b	25 cm.
c	198 halaman : gambar, tabel ; 25 cm.
.336
a	Buku-Bacaan Pengaya Nonfiksi