TY - BOOK AU - Malone,T.F. AU - Roederer,J.g. TI - Global change : the proceeding of a symposium sponsored by the International Council of Scintific Unions(ICSU) during its 20th general assembly in Ottawa, Canada on September 25, 1984 SN - 0521-30670-1 PY - 1985/// CY - Melbourne PB - Cambridge University Press KW - Tierra KW - Medio Ambiente KW - Biosfera KW - Cambio Global ER -