Gaya APA
HORTON, Douglas. (1988).
Underground crops long-term trends in production of roots and tubers .
Morrilton, USA:
Winrock International Institute for Agricultural Developmentt.
Gaya Chicago
HORTON, Douglas.
Underground crops long-term trends in production of roots and tubers.
Morrilton, USA:
Winrock International Institute for Agricultural Developmentt,
1988.
Text.
Gaya MLA
HORTON, Douglas.
Underground crops long-term trends in production of roots and tubers.
Morrilton, USA:
Winrock International Institute for Agricultural Developmentt,
1988.
Text.
Gaya Turabian
HORTON, Douglas.
Underground crops long-term trends in production of roots and tubers.
Morrilton, USA:
Winrock International Institute for Agricultural Developmentt,
1988.
Print.