Penggayaan APA
Birdsall, Stephen S.. (s.a).
Garis Besar Geografi Amerika .
Amerika Serikat:
United States Department Of State.
Chicago Style
Birdsall, Stephen S..
Garis Besar Geografi Amerika.
Amerika Serikat:
United States Department Of State,
s.a.
Text.
MLA Style
Birdsall, Stephen S..
Garis Besar Geografi Amerika.
Amerika Serikat:
United States Department Of State,
s.a.
Text.
Turabian Style
Birdsall, Stephen S..
Garis Besar Geografi Amerika.
Amerika Serikat:
United States Department Of State,
s.a.
Print.