APA
Keen M., Strand Jon, Parry Ian & World Bank. (2012). Market-based instruments for international aviation and ship. Washington DC: World Bank.
Chicago
Keen Michael, Strand Jon, Parry Ian and World Bank. 2012. Market-based instruments for international aviation and ship. Washington DC: World Bank.
Harvard
Keen M., Strand Jon, Parry Ian and World Bank. (2012). Market-based instruments for international aviation and ship. Washington DC: World Bank.
MLA
Keen Michael, Strand Jon, Parry Ian and World Bank. Market-based instruments for international aviation and ship. Washington DC: World Bank. 2012.
