01019nam a2200253 a 450000100100000000500170001000800410002702000150006804000250008308200150010810000300012324000480015324501700020126000370037130000210040850000310042953400690046070000330052970000310056270000330059304900090062695201130063599900170074800002312320200930022013.0101126s1983    ag      r     000 | spa d  a9509098035  aDO-SdBNPbspacBNPHU  axxxbP437t1 aPerelman, Lewis J.94760610aEnergy transitions : long-term perspectives10aTransiciones de las fuentes de energía :bperspectivas a largo plazo /cLewis J. Perelman, August W. Giebelhaus, Michael D. Yokell ; traducido por José Clementi.  aBuenos Aires :bAragón,c1983.  a207 p. ;c21 cm.  aIncluye notas y referencia  aTítulo original :tEnergy transitions : long-term perspectives1 aGiebelhaus, August W.9476071 aYokell , Michael D.9476081 aClementi, Joséetr.941126  aBNGR  001050718MOaGRbGRcCTd2010-11-26iLF1l0oxxx P437tp23123-10r2020-06-25w2020-06-25y1ZNo se presta  c22620d22620