APA (7th ed.) Citation

(2006). Linesman, the Great War Western Front GPS companion: A unique blend of First World War historical map archive and modern IGN satellite navigation for France ; 750 1:10000 scale British trench maps ; memory-map compatible (new version with more maps, rev. September 2007.). Great War Digital.

Chicago Style (17th ed.) Citation

Linesman, the Great War Western Front GPS Companion: A Unique Blend of First World War Historical Map Archive and Modern IGN Satellite Navigation for France ; 750 1:10000 Scale British Trench Maps ; Memory-map Compatible. new version with more maps, rev. September 2007. [Orpington]: Great War Digital, 2006.

MLA (9th ed.) Citation

Linesman, the Great War Western Front GPS Companion: A Unique Blend of First World War Historical Map Archive and Modern IGN Satellite Navigation for France ; 750 1:10000 Scale British Trench Maps ; Memory-map Compatible. new version with more maps, rev. September 2007. Great War Digital, 2006.