APA Style
Sky and telescope : January 2019. (2019).
:
.
Chicago Style
Sky and telescope : January 2019.
.
:
,
2019.
Magazine.
MLA Style
Sky and telescope : January 2019.
.
:
,
2019.
Magazine.
Turabian Style
Sky and telescope : January 2019.
:
,
2019.
Magazine.