APA
Ahmad Y. J., Serafy S. E. & Lutz E. (1989). Enviromental accounting for sustainable development. Washington: World Bank.
Chicago
Ahmad Yusuf J, Serafy Salah El and Lutz Ernst. 1989. Enviromental accounting for sustainable development. Washington: World Bank.
Harvard
Ahmad Y. J., Serafy S. E. and Lutz E. (1989). Enviromental accounting for sustainable development. Washington: World Bank.
MLA
Ahmad Yusuf J, Serafy Salah El and Lutz Ernst. Enviromental accounting for sustainable development. Washington: World Bank. 1989.