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3
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Tradition and dynamics in small-farm agriculture : economic studies in Asia, Africa, and Latin America / ed. by Robert D. Stevens.
- Iowa State University Press,
- 1977.
- Ames :
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Forages : the science of grassland agriculture / ed. by Maurice E. Heath, Darrel S. Metcalfe, Robert F. Barnes.
- 873
- Iowa State University Press,
- 1975.
- Ames :
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Qi lai! : mobilizing one billion Chinese: the Chinese communication system / Robert L. Bishop.
- Iowa State University Press,
- 1989.
- Ames :