Gaya APA
NOBBS, Jack. (1975).
Advanced Level Economics .
London:
McGRAW-HILL BOOK COMPANY.
Gaya Chicago
NOBBS, Jack.
Advanced Level Economics.
London:
McGRAW-HILL BOOK COMPANY,
1975.
Teks.
Gaya MLA
NOBBS, Jack.
Advanced Level Economics.
London:
McGRAW-HILL BOOK COMPANY,
1975.
Teks.
Gaya Turabian
NOBBS, Jack.
Advanced Level Economics.
London:
McGRAW-HILL BOOK COMPANY,
1975.
Teks.