Gaya APA
Fundamental Astronomy. (2016).
Berlin:
Springer.
Gaya Chicago
Fundamental Astronomy.
.
Berlin:
Springer,
2016.
Text.
Gaya MLA
Fundamental Astronomy.
.
Berlin:
Springer,
2016.
Text.
Gaya Turabian
Fundamental Astronomy.
Berlin:
Springer,
2016.
Print.