Hughes, D. (1996). Environmental law (ed. 3.). Butterworths.
Čikaški stil citiranjaHughes, David. Environmental Law. ed. 3. London: Butterworths, 1996.
MLA način citiranjaHughes, David. Environmental Law. ed. 3. Butterworths, 1996.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.