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Proceedings of the Workshop on soybean rust in the Western hemisphere : November 14-17, 1976, Mayagüez institute of tropical agriculture, Mayagüez, Puerto Rico / ed. by Nader G. Vakili.
- U.S. department of agriculture. Agricultural research service,
- 1978.
- [Washington, DC] :
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U.S. Department of agriculture cacao clone collection / by H.H. Fisher, P.K. Soderholm, and R.P. Kahn.
- 873
- U.S. department of agriculture. Agricultural research service,
- 1967.
- [Washington, DC] :
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Decision making in the biological field / by Jean Mayer.
- U.S. department of agriculture. Agricultural research service,
- [1972].
- [Washington, DC] :