M E Leandro Munoz,Bisseleua B D H Vidal S,Guzman Martinez O Ramirez Gaviria J J,Huber A Oyarzun C Ramirez M Figueroa H,Kulandaivelu R Morachan Y B,Huber A W Oyarzun C E Onate M M,Moreno E Contreras N Ramirez J,P J Salinas,J D Hewlett,C W Mather Thornthwaite,A Chacon Zuniga,Rosenberg N J Blad B L Verma S B,