FITZGERALD, S. (1989). International Wildlife Trade Whose Business Is It Sarah Fitzgerald. World Wildlife Fund.
Lua i Stíl Chicago (17ú heag.)FITZGERALD, Sarah. International Wildlife Trade Whose Business Is It Sarah Fitzgerald. World Wildlife Fund, 1989.
Lua MLA (8ú heag.)FITZGERALD, Sarah. International Wildlife Trade Whose Business Is It Sarah Fitzgerald. World Wildlife Fund, 1989.
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