M.L. Parry 
Impact of climatic variations on agriculture. Vol 2 : Assessment in semi-arid  regions  
 - London  Kluwer academic publishers  1988 
 - 764p 
 -  Vol 2 .
M.L. Parry; T.R. Carter & N.T. Konijn: Impact of climatic variations on agriculture. Vol 2 : Assessment in semi-arid  regions.  London.  Kluwer academic publishers, 1988. 90-277-2719-8--(630.2516PAR)   
ENGLISH 
90-277-2719-8 
630.2516  / PAR