Código QR (código de barras bidimensional)

The Earth Summit '92 the United Nations Conference on Environment and Development Rio de Janeiro 1992

Detalhes bibliográficos
Formato:	Livro
Idioma:	inglês
Publicado em:	London Regency Press 1992
Assuntos:	Economic development > Environmental aspects. Environmental law, International. Environmental policy > International cooperation. United Nations Conference on Environment and Development (1992: Rio de Janeiro, Brazil)