APA
Boyle A. (., Freestone D. (., . (1999). International law and sustainable development: Past achievem. Oxford: Oxford Uni Pr.
Chicago
Boyle Alan (ed), Freestone David (ed), . 1999. International law and sustainable development: Past achievem. Oxford: Oxford Uni Pr.
Harvard
Boyle A. (., Freestone D. (., . (1999). International law and sustainable development: Past achievem. Oxford: Oxford Uni Pr.
MLA
Boyle Alan (ed), Freestone David (ed), . International law and sustainable development: Past achievem. Oxford: Oxford Uni Pr. 1999.