APA
Quarrie Joyce (ed.), . (1992). Earth Summit 1992 : The United Nations Conference on Environment and Development Rio de Janeiro 1992. LONDON: REGENCY PRESS.
Chicago
Quarrie Joyce (ed.), . 1992. Earth Summit 1992 : The United Nations Conference on Environment and Development Rio de Janeiro 1992. LONDON: REGENCY PRESS.
Harvard
Quarrie Joyce (ed.), . (1992). Earth Summit 1992 : The United Nations Conference on Environment and Development Rio de Janeiro 1992. LONDON: REGENCY PRESS.
MLA
Quarrie Joyce (ed.), . Earth Summit 1992 : The United Nations Conference on Environment and Development Rio de Janeiro 1992. LONDON: REGENCY PRESS. 1992.