Gaya APA
Evenson, Robert E., Gollin, Douglas. (2002).
Crop variety improvement and its effect on productivity : the impact of international agricultural research .
Wallingford:
CABI Publishing.
Gaya Chicago
Evenson, Robert E., Gollin, Douglas.
Crop variety improvement and its effect on productivity : the impact of international agricultural research.
Wallingford:
CABI Publishing,
2002.
Text.
Gaya MLA
Evenson, Robert E., Gollin, Douglas.
Crop variety improvement and its effect on productivity : the impact of international agricultural research.
Wallingford:
CABI Publishing,
2002.
Text.
Gaya Turabian
Evenson, Robert E., Gollin, Douglas.
Crop variety improvement and its effect on productivity : the impact of international agricultural research.
Wallingford:
CABI Publishing,
2002.
Print.