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On-farm ethanol production regulatory guide
(Oklahoma Cooperative Extension Service, 2010-03)
Understanding the different kinds of water addressed by Oklahoma's water law
(Oklahoma Cooperative Extension Service, 2010-02)
Oklahoma diffuse surface ("runoff") water law and rules
(Oklahoma Cooperative Extension Service, 2010-02)
On-farm biodiesel production regulatory guide
(Oklahoma Cooperative Extension Service, 2010-03)