Published in Boletin De La Sociedad De Biologia De Concepcion, in 1969, in volume 40, pages 81-89

Created: 2012-03-02, modified: 2012-03-02

Published in Boletin Soc Biol Concepcion, in 1969, in volume 41, pages 5-8

Created: 2013-07-14, modified: 2013-07-14

Published in Boletin De La Sociedad De Biologia De Concepcion, in 1969, in volume 41, pages 41-78

Created: 2012-03-02, modified: 2012-03-02