IUCN European Programme. (1997). Fishing for a Living: The Ecology and Economics of Fishponds in Central Europe.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIUCN European Programme. Fishing for a Living: The Ecology and Economics of Fishponds in Central Europe. 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIUCN European Programme. Fishing for a Living: The Ecology and Economics of Fishponds in Central Europe. 1997.
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