Não informado. (1994). International Journal of Sustainable Development and World Ecology. Parthenon Publishing.
Chicagoスタイル(17版)引用形式Não informado. International Journal of Sustainable Development and World Ecology. Lancs, Inglaterra: Parthenon Publishing, 1994.
MLA(8版)引用形式Não informado. International Journal of Sustainable Development and World Ecology. Parthenon Publishing, 1994.
警告: この引用は必ずしも正確ではありません.