APA Style
sky and telescope : July 2015. (2015).
:
.
Chicago Style
sky and telescope : July 2015.
1.
:
,
2015.
Magazine.
MLA Style
sky and telescope : July 2015.
1.
:
,
2015.
Magazine.
Turabian Style
sky and telescope : July 2015.
:
,
2015.
Magazine.