Number of items: 1.
Monograph
    Popov, T., Georgiev, T., Ivanov, G., Stefanov, L. & Rouscheva, D.
  
(1983).
    Case Study on Limits and Consequences of Agricultural Technologies in the North-East Region of the People's Republic of Bulgaria.
  
    IIASA Collaborative Paper.
  IIASA, Laxenburg, Austria: CP-83-024
  
  
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