Gaya APA

Emerging environmental issues for the 21st century : a study for GEO-2000 / R.E. (Ted) Munn, Anne Whyte and Peter Timmerman (Eds.) : United Nations Environment Programme. (2000). : Paris, United Nations Environment Programme.

Gaya MLA

Emerging environmental issues for the 21st century : a study for GEO-2000 / R.E. (Ted) Munn, Anne Whyte and Peter Timmerman (Eds.) : United Nations Environment Programme. . : Paris, United Nations Environment Programme, 2000. Text.