Agricultural systems, theory and application : papers
DENT, J. B
Agricultural systems, theory and application : papers - Ludhiana 1978 - 166p
AGRICULTURAL SYSTEMS
AGRICULTURAL ENGINEERING AGRICULTURAL SYSTEMS AGRICULTURE -- SIMULATION METHODS
630.208 A35A
Agricultural systems, theory and application : papers - Ludhiana 1978 - 166p
AGRICULTURAL SYSTEMS
AGRICULTURAL ENGINEERING AGRICULTURAL SYSTEMS AGRICULTURE -- SIMULATION METHODS
630.208 A35A