Gaya APA
Drummond, H. Evan, Goodwin, John W.. (2011).
Agricultural economics (3rd ed).
Upper Saddle River:
Pearson Education.
Gaya Chicago
Drummond, H. Evan, Goodwin, John W..
Agricultural economics.
3rd ed
Upper Saddle River:
Pearson Education,
2011.
Text.
Gaya MLA
Drummond, H. Evan, Goodwin, John W..
Agricultural economics.
3rd ed
Upper Saddle River:
Pearson Education,
2011.
Text.
Gaya Turabian
Drummond, H. Evan, Goodwin, John W..
Agricultural economics.
3rd ed
Upper Saddle River:
Pearson Education,
2011.
Print.