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China's livestock and related agriculture : projections to 2025 / James R. Simpson, Xu Cheng, Akira Miyazaki.
by Miyazaki, Akira.; Simpson, James R.; Simpson, J. R.; Cheng, Xu.;
Year: c1994., Callno: 636:338(510) SIM
Book
The problem of maintaining soil fertility in eastern Kenya : a review of relevant research / J.R. Simpson, J.R. Okalebo & G. Lubulwa.
by Okalebo, John Robert.; Lubulwa, G.; Simpson, J. R.; Australian Centre for International Agricultural Research.;
Year: 1996., Callno: 631.452(676.2)
Book
Soil fertility and climatic constraints in dryland agriculture : proceedings of ACIAR/SACCAR Workshop held at Harare, Zimbabwe, 30 August-1 September 1993 / editors, E.T. Craswell and J. Simpson.
by Simpson, J.; Australian Centre for International Agricultural Research.; Craswell, E. T.; ACIAR/SACCAR Workshop (1993 : Harare, Zimbabwe); Southern African Centre for Cooperation in Agricultural Research.;
Year: 1994., Callno: 631.586(68) ACI
Book
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