1
por Posey, Darrell Addison, 1947-
Publicado 1996
“...International Development Research Centre (Otawa, Canada)...”Publicado 1996
2
Publicado 1999
“...International Development Research Centre (Otawa, Canada)...”
3
Publicado 2006
“...International Development Research Centre (Otawa, Canada)...”
4
Publicado 2012
“...International Development Research Centre (Otawa, Canada)...”
5
Publicado 2002
“...International Development Research Centre (Otawa, Canada)...”
6
Publicado 1991
“...International Development Research Centre (Otawa, Canadá). Energy Research Group...”
7
por Suárez Zozaya, María Herlinda.
Publicado 1996
“...International Development Research Centre (Otawa, Canada)...”Publicado 1996