Humphreys, Rob. The rough guide to Vienna / written and researched by Rob Humphreys. - 6th ed. - London : Rough Guides, 2011. - 296 p., [12] p. of plates : ill. (some col.), maps (some col.) ; 20 cm. - The rough guide to . - Rough guide to . Includes index. ISBN: 9781848366817 (pbk.) 1848366817 (pbk.) Subjects--Geographic Terms: Vienna (Austria)--Guidebooks. Dewey Class. No.: 914.3613 / HUM 2011