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Geoparks and geotourism : new approaches to sustainability for the 21st century / edited by Neda Torabi Farsani ... [et al.] . Boca Raton : BrownWalker Press, 2012 . xvii, 189 s . ISBN 978-1-61233-551-3 (brož.) .   [4, currently available 1, at library only 1]