Programa Frontera XXI. México - EUA Corporate author Secretaría de Medio Ambiente, Recursos Naturales y Pesca Date 1996 Source IUCN (ID: MON-062541) Publisher | Place of publication Secretaría de Medio Ambiente | Tlalpan, México ISBN 968-817-381-9 Pages 220 p. Document type Monography/book Language Spanish Country/Territory United States of America, Mexico Subject Environment gen. Keyword Transboundary effects International relations/cooperation Geographical area North America