Cita APA (7a ed.)

Harremoës, P. (2002). The precautionary principle in the 20th century: Late lessons from early warnings. Earthscan Publications.

Cita Chicago Style (17a ed.)

Harremoës, Poul. The Precautionary Principle in the 20th Century: Late Lessons from Early Warnings. London ; Sterling, VA: Earthscan Publications, 2002.

Cita MLA (9a ed.)

Harremoës, Poul. The Precautionary Principle in the 20th Century: Late Lessons from Early Warnings. Earthscan Publications, 2002.