Signos de renovação
Subtitle: por um agir ecológico
By: Arno Kayser.
Publisher: Otomit Editora; Editora Sinodal
Published: 1991
Place of publication: Novo Hamburgo, RS; São Leopoldo, RS
Language: por
Number of pages: 75
Subjects: Ecology -- Brazil.; Ecology.
Notes: Articles originally published in the ecology column of NH, newspaper edited by the Grupo Editorial Sinos, between 1984-1990.