There are several offline resources available worldwide.
United Kingdom
edit- Wikimedia UK
Wikimedia UK has several World War One related reference books, and funds to purchase more if required. At present, it has:
- Smyth, W.H. (2009). The Sailor's Word-Book: A Dictionary of 14,000 Nautical Terms. England: Anova Books, UK. ISBN 9780851779720.
Wikimedia UK is planning to purchase, for general use by editors:
- Beckett, Ian F. W. (2002). The First World War: The Essential Guide to Sources in the UK National Archives (1. publ. ed.). Richmond: Public Record Office. ISBN 9781903365410.