Johnston, D. M. (1981). The environmental law of the sea. International Union for Conservation of Nature and Natural Resources.
Citazione stile Chigago Style (17a edizione)Johnston, Douglas M. The Environmental Law of the Sea. Lausana: International Union for Conservation of Nature and Natural Resources, 1981.
Citatione MLA (9a ed.)Johnston, Douglas M. The Environmental Law of the Sea. International Union for Conservation of Nature and Natural Resources, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.