00325nam a2200109Ia 450000500170000008000180001710000220003524500970005726000270015430000150018158300190019620260716043105.0  a07.06.01 H523  aHenry, C. Michael  aEconomics of adoption of new agricultural technology : the case of the Guyana rice subsector  bHansibaLondonGBc1989  axi, 255 p.  c3/7/00kM2LMGR