Gaya APA
GRUBEL, G.Hrebert. (1977).
International Economics .
USA:
Richard D. Irwin.
Gaya Chicago
GRUBEL, G.Hrebert.
International Economics.
USA:
Richard D. Irwin,
1977.
Monograf.
Gaya MLA
GRUBEL, G.Hrebert.
International Economics.
USA:
Richard D. Irwin,
1977.
Monograf.
Gaya Turabian
GRUBEL, G.Hrebert.
International Economics.
USA:
Richard D. Irwin,
1977.
Monograf.