na INLIS000000000012910 Ind 0010-1118012910 Participatory research methods for technology evaluation: a manual for scientists working with farmers BELLON, Mauricio R. Mauricio R. Bellon Mexico CIMMYT 2001 ix, 93 p. : ill. ; 26 cm. ix, 93 p. : ill. ; 26 cm. ISBN 970-648-066-8 001.891BELp 1.891 RESEARCH METHODS SCIENTISTS FARMERS 846/2001-mfn14705 846/2001-mfn35729 846/2001-mfn37373 770/2003