APA Style
Purwanto, Agus. (2009).
Pengantar Kosmologi .
Surabaya:
ITS Press.
Chicago Style
Purwanto, Agus.
Pengantar Kosmologi.
Surabaya:
ITS Press,
2009.
Text.
MLA Style
Purwanto, Agus.
Pengantar Kosmologi.
Surabaya:
ITS Press,
2009.
Text.
Turabian Style
Purwanto, Agus.
Pengantar Kosmologi.
Surabaya:
ITS Press,
2009.
Print.