Παραπομπή σε μορφή APA (7η εκδ.)

Johnston, R. J. (1996). Nature, state and economy: A political economy of the environment (2nd ed.). John Wiley and Sons.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Johnston, R. J. Nature, State and Economy: A Political Economy of the Environment. 2nd ed. Chichester: John Wiley and Sons, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Johnston, R. J. Nature, State and Economy: A Political Economy of the Environment. 2nd ed. John Wiley and Sons, 1996.