Gaya APA
Essential Astrophysics. (2013).
Berlin:
Springer.
Gaya Chicago
Essential Astrophysics.
.
Berlin:
Springer,
2013.
Text.
Gaya MLA
Essential Astrophysics.
.
Berlin:
Springer,
2013.
Text.
Gaya Turabian
Essential Astrophysics.
Berlin:
Springer,
2013.
Print.