APA-viite

Caldwell, L. K. (1991). International environmental policy: Emergence and dimensions.

Chicago-tyylinen lähdeviittaus

Caldwell, Lynton Keith. International Environmental Policy: Emergence and Dimensions. New Delhi, East-West Pvt Ltd, 1991.

MLA-viite

Caldwell, Lynton Keith. International Environmental Policy: Emergence and Dimensions. 1991.