CHRISTIANSEN, S. Heinrich Walter: Vegetation of the Earth and Ecological Systems of the Geo-biosphere. Springer Verlag, New York 1979. 274 s., ill., 24x15 cm, paperback. Geografisk Tidsskrift, [S. l.], v. 80, 1980. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/45326. Acesso em: 28 apr. 2024.