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Programmable calculator, Decision Maker Series: Livestock decision risk analysis
(Oklahoma Cooperative Extension Service, 1983-02)
Programmable calculator, Decision Maker Series: Agricultural loan analysis
(Oklahoma Cooperative Extension Service, 1983-02)
Programmable calculator, Decision Maker Series: Farm truck and automobile cost analysis
(Oklahoma Cooperative Extension Service, 1983-02)
Programmable calculator, Decision Maker Series: Field crops costs and returns analysis
(Oklahoma Cooperative Extension Service, 1983-02)
Programmable calculator, Decision Maker Series: Livestock costs and returns analysis
(Oklahoma Cooperative Extension Service, 1983-02)