APA (7th ed.) Citation

United Nations Environment Programme. (1980). Choosing the options: Alternative life styles and development patterns. United Nations Environment Programme.

Chicago Style (17th ed.) Citation

United Nations Environment Programme. Choosing the Options: Alternative Life Styles and Development Patterns. Nairobi: United Nations Environment Programme, 1980.

MLA (9th ed.) Citation

United Nations Environment Programme. Choosing the Options: Alternative Life Styles and Development Patterns. United Nations Environment Programme, 1980.