International Lake Environment Committee & United Nations Environment Programme. Guidelines of the lake management. International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
Citazione stile Chigago Style (17a edizione)International Lake Environment Committee e United Nations Environment Programme. Guidelines of the Lake Management. Shiga, Japan, [Nairobi]: International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
Citatione MLA (9a ed.)International Lake Environment Committee e United Nations Environment Programme. Guidelines of the Lake Management. International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.