APA Style
Munroe, Randall. (2014).
What If? .
:
xkcd Inc..
Chicago Style
Munroe, Randall.
What If?.
:
xkcd Inc.,
2014.
Text.
MLA Style
Munroe, Randall.
What If?.
:
xkcd Inc.,
2014.
Text.
Turabian Style
Munroe, Randall.
What If?.
:
xkcd Inc.,
2014.
Print.