Gaya APA

Tickner, J, A., Commander, S. (2002). Precaution, environmental science, and preventive public policy / editor,Joel A.Tickner . Washington: Island Press.

Gaya MLA

Tickner, Joel, A.., Commander, Simon. "Precaution, environmental science, and preventive public policy / editor,Joel A.Tickner". Washington: Island Press, 2002. Text.