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.