Gaya APA
HALM,George N.. (1960).
Economic Systems .
New York:
Holt Rinehart And Winston.
Gaya Chicago
HALM,George N..
Economic Systems.
New York:
Holt Rinehart And Winston,
1960.
Teks.
Gaya MLA
HALM,George N..
Economic Systems.
New York:
Holt Rinehart And Winston,
1960.
Teks.
Gaya Turabian
HALM,George N..
Economic Systems.
New York:
Holt Rinehart And Winston,
1960.
Teks.