Styl cytowania APA

Brown, L. R. A. (1988). State of the world 1988: A world watch institute report on progress toward a sustainable society.

Styl cytowania Chicago

Brown, Lester R; Author. State of the World 1988: A World Watch Institute Report on Progress Toward a Sustainable Society. New Delhi, Prentice Hall, 1988.

Styl cytowania MLA

Brown, Lester R; Author. State of the World 1988: A World Watch Institute Report on Progress Toward a Sustainable Society. 1988.