Citazione Stile APA (7a Edizione)

Wertz, W. R. (2014). Lynton Keith Caldwell: An environmental visionary and the national environmental policy act. Indiana University Press.

Citazione stile Chigago Style (17a edizione)

Wertz, Wendy Read. Lynton Keith Caldwell: An Environmental Visionary and the National Environmental Policy Act. Bloomington, Indiana: Indiana University Press, 2014.

Citatione MLA (9a ed.)

Wertz, Wendy Read. Lynton Keith Caldwell: An Environmental Visionary and the National Environmental Policy Act. Indiana University Press, 2014.