Penggayaan APA
HEILBRONER, Robert L.. (1975).
The economic problem (ed. 2).
America:
Prentice-Hall.
Chicago Style
HEILBRONER, Robert L..
The economic problem.
ed. 2
America:
Prentice-Hall,
1975.
Buku.
MLA Style
HEILBRONER, Robert L..
The economic problem.
ed. 2
America:
Prentice-Hall,
1975.
Buku.
Turabian Style
HEILBRONER, Robert L..
The economic problem.
ed. 2
America:
Prentice-Hall,
1975.
Buku.