por Congreso Latinoamericano e Iberico de Quimicos Cosmeticos (13 : 1997 : Acapulco, Guerrero) | International Federation Societies of Cosmetic Chemists.
por Congreso Latinoamericano e Iberico de Quimicos Cosmeticos (13 : 1997 : Acapulco, Guerrero) | International Federation Societes of Cosmetic Chemists | International Federation Societes of Cosmetic Chemists (1997 : Acapulco, Gro.).