Gaya APA
ROSS, ROBERT C.. (1951).
An introduction to agricultural economics .
New York:
McGraw-Hill Book Company.
Gaya Chicago
ROSS, ROBERT C..
An introduction to agricultural economics.
New York:
McGraw-Hill Book Company,
1951.
.
Gaya MLA
ROSS, ROBERT C..
An introduction to agricultural economics.
New York:
McGraw-Hill Book Company,
1951.
.
Gaya Turabian
ROSS, ROBERT C..
An introduction to agricultural economics.
New York:
McGraw-Hill Book Company,
1951.
.