Cambios en el aprovechamiento de los recursos naturales de la antigua ciénega de Tlaxcala

"Detailed account of changing resource use in an area of southwestern Tlaxcala state. Concludes that major changes, most of which have taken place over the last century, include: replacement of pasture by cultivated land, the drying up of lakes and wetlands, and a reduction in biogical diversity"--Handbook of Latin American Studies, v. 57.