00407nam 2209684 45000010005000000030023000050050009000280080041000370820015000780200018000931000032001112600034001433000017001772450069001949684StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a333.790972 a0-86531-835-2 aMiguel S. Wionczek (Editor) bLondon: Westview Press c1985 ax;176p: 20cm aMexicoُs Energy Resources bToward a Policy of Diversification