Dyfyniad APA

Johnston, R., & R.J. Johnston. (1996). Nature, state and Economy: A political economy of the enviroment. Wiley.

Dyfyniad Arddull Chicago

Johnston, R.J, and R.J. Johnston. Nature, State and Economy: A Political Economy of the Enviroment. Chichester: Wiley, 1996.

Dyfyniad MLA

Johnston, R.J, and R.J. Johnston. Nature, State and Economy: A Political Economy of the Enviroment. Wiley, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.