APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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