Ουέλε (ποταμός) (Greek Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ουέλε (ποταμός)" in Greek language version.

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1books.google.com

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books.google.com

Bossche, J.P. vanden· G. M. Bernacsek (1990). Source Book for the Inland Fishery Resources of Africa, Volume 1. Food and Agriculture Organization of the United Nations. σελ. 338. ISBN 978-92-5-102983-1. Ανακτήθηκε στις 8 Αυγούστου 2010.