Sphekas, Giorgos Ecotouristic guide of Greece / by Gregory Tsounis and George Sfikas ; with 110 pictures in colour and 24 maps. - Athens : General Secretariat of Youth. Hellenic Society for the Protection of Nature, 1993. - 195 pages : illustrations, maps ; 21 cm. Bibliography: pages 190-195. ISBN: 9607197003 Subjects--Topical Terms: Ecotourism--Greece Dewey Class. No.: 577.82