Book
Klass, J
Klass, Justine; Leclerc, Gregoire; Morales, Francisco José; Anderson, Pamela K. 1998. Integrated pest management and GIS : Spatial analysis of the whitefly problem in Central America, Mexico and the Caribbean: The GIS component: User and technical documentation. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 84 p.