Morris, J. (1997). Green goodsn: Consumers, product labels and the environment. The Institute of Economic Affairs.
Lua i Stíl Chicago (17ú heag.)Morris, Julian. Green Goodsn: Consumers, Product Labels and the Environment. London: The Institute of Economic Affairs, 1997.
Lua MLA (9ú heag.)Morris, Julian. Green Goodsn: Consumers, Product Labels and the Environment. The Institute of Economic Affairs, 1997.
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