Gaya APA
Heady, Earl O., Mayer, Leo V.. (1965).
Roots of the farm problem changing technology, changing capital use, changing labor needs Earl O. Heady, Edwin O. Haroldsen, Leo V. Mayer [and] Luther G. Tweeten Ames .
Iowa:
The Iowa State College Press.
Gaya Chicago
Heady, Earl O., Mayer, Leo V..
Roots of the farm problem changing technology, changing capital use, changing labor needs Earl O. Heady, Edwin O. Haroldsen, Leo V. Mayer [and] Luther G. Tweeten Ames.
Iowa:
The Iowa State College Press,
1965.
Text.
Gaya MLA
Heady, Earl O., Mayer, Leo V..
Roots of the farm problem changing technology, changing capital use, changing labor needs Earl O. Heady, Edwin O. Haroldsen, Leo V. Mayer [and] Luther G. Tweeten Ames.
Iowa:
The Iowa State College Press,
1965.
Text.
Gaya Turabian
Heady, Earl O., Mayer, Leo V..
Roots of the farm problem changing technology, changing capital use, changing labor needs Earl O. Heady, Edwin O. Haroldsen, Leo V. Mayer [and] Luther G. Tweeten Ames.
Iowa:
The Iowa State College Press,
1965.
Print.