Gaya APA
GILL, Richard T.. (1978).
Economics A Text With Readings (3rd ed.).
California:
Goodyear Publishing.
Gaya Chicago
GILL, Richard T..
Economics A Text With Readings.
3rd ed.
California:
Goodyear Publishing,
1978.
Teks.
Gaya MLA
GILL, Richard T..
Economics A Text With Readings.
3rd ed.
California:
Goodyear Publishing,
1978.
Teks.
Gaya Turabian
GILL, Richard T..
Economics A Text With Readings.
3rd ed.
California:
Goodyear Publishing,
1978.
Teks.