Volcano trek Rob Waring - London : Thomson Heinle; National Geograpic, c2009. - 24 p. : col. ill. ; 22 cm, 1 x DVD. - Footprint reading library . - Footprint reading library . Pre-intermediate A2800 headwords Video and Audio on DVD ISBN: 9781424010554 Subjects--Topical Terms: Volcanoes Dewey Class. No.: 428.6 VO LC