Gaya APA
Black,George. (2002).
Sketchbook USA .
:
US Department of State.
Gaya Chicago
Black,George.
Sketchbook USA.
:
US Department of State,
2002.
Non-fiction.
Gaya MLA
Black,George.
Sketchbook USA.
:
US Department of State,
2002.
Non-fiction.
Gaya Turabian
Black,George.
Sketchbook USA.
:
US Department of State,
2002.
Non-fiction.