Penggayaan APA
HALM, George N. (1978).
Economic systems : (3rd ed.).
New Delhi:
Oxford and IBH.
Chicago Style
HALM, George N.
Economic systems :.
3rd ed.
New Delhi:
Oxford and IBH,
1978.
Buku.
MLA Style
HALM, George N.
Economic systems :.
3rd ed.
New Delhi:
Oxford and IBH,
1978.
Buku.
Turabian Style
HALM, George N.
Economic systems :.
3rd ed.
New Delhi:
Oxford and IBH,
1978.
Buku.