APA

United Nations Environment Programme, International Panel for Sustainable Resource Management, . (2009). Towards sustainable production and use of resources. s, l: United Nations Environment Programme.

Chicago

United Nations Environment Programme, International Panel for Sustainable Resource Management, . 2009. Towards sustainable production and use of resources. s, l: United Nations Environment Programme.

Harvard

United Nations Environment Programme, International Panel for Sustainable Resource Management, . (2009). Towards sustainable production and use of resources. s, l: United Nations Environment Programme.

MLA

United Nations Environment Programme, International Panel for Sustainable Resource Management, . Towards sustainable production and use of resources. s, l: United Nations Environment Programme. 2009.