(2012). The art of walking: A field guide. Black Dog Publishing.
Chicago Style (17th ed.) ZitazioaThe Art of Walking: A Field Guide. London, UK: Black Dog Publishing, 2012.
MLA (9th ed.) ZitazioaThe Art of Walking: A Field Guide. Black Dog Publishing, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.