Παραπομπή APA

Percival, R. V. L. (2014). Global Environmental Law at a Crossroads: Global Environmental Law (Ed.1.). Edward Elgar.

Παραπομπή Chicago Style

Percival, Robert V; Lin. Global Environmental Law at a Crossroads: Global Environmental Law. Ed.1. Cheltenham: Edward Elgar, 2014.

Παραπομπή MLA

Percival, Robert V; Lin. Global Environmental Law at a Crossroads: Global Environmental Law. Ed.1. Edward Elgar, 2014.