@book{9565,
	author = {Erickson, Jon. and Español Echaniz, Ignacio.},
	title = {Un Mundo en desequilibrio },
	publisher = {McGraw-Hill, },
	year = {D.L. 1993.},
	series = {Serie McGraw-Hill de divulgación científica},
	address = {Madrid [etc.] : },
	note = {Bibliogr.: p.199-204.}
}