Gaya APA
Halcrow, Harold G.. (1980).
Economics of agriculture .
United States of America:
McGraw-Hill.
Gaya Chicago
Halcrow, Harold G..
Economics of agriculture.
United States of America:
McGraw-Hill,
1980.
Text.
Gaya MLA
Halcrow, Harold G..
Economics of agriculture.
United States of America:
McGraw-Hill,
1980.
Text.
Gaya Turabian
Halcrow, Harold G..
Economics of agriculture.
United States of America:
McGraw-Hill,
1980.
Print.