APA Style
W., C, B., A., O, D. (2007).
An introduction to modern astrophysics. second edition .
San Fransisco:
ADDISON - WESLEY.
MLA Style
W., Carroll., Bradley., A., Ostlie., Dale.
"An introduction to modern astrophysics. second edition".
San Fransisco:
ADDISON - WESLEY,
2007.
Buku.