Jahnke, H. E. (1976). Systems research, systems simulation and ILCA's research on livestock production systems. International Livestock Centre for Africa.
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Cita Chicago Style (17a ed.)
Jahnke, Hans E. Systems Research, Systems Simulation and ILCA's Research on Livestock Production Systems. International Livestock Centre for Africa, 1976.
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Cita MLA (9a ed.)
Jahnke, Hans E. Systems Research, Systems Simulation and ILCA's Research on Livestock Production Systems. International Livestock Centre for Africa, 1976.
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