Biblioteca Roosevelt Search for 'au:"Wais de Badgen, Irene"'

La contaminación en ríos y lagos / Irene Wais de Badgen, Inge Thiel, Georgina Gentile.

By Wais de Badgen, Irene.. Buenos Aires, AR : Lumen, 1997 . 48 p. 950-724-676-2

By Wais de Badgen, Irene.. Buenos Aires, AR : Lumen, 2010 . 48 p. 978-987-00-0772-2

By Wais de Badgen, Irene.. Buenos Aires, AR : Universo, 1998 . 188 p. 987-9205-09-X

By Wais de Badgen, Irene. Buenos Aires, AR : Magisterio, 1999 . 111 p. 950-550-273-7

By Wais de Badgen, Irene R.. Buenos Aires, AR : Lumen, 2003 . 48 p. 978-00-0139-4