APA (7th ed.) Citation

Spencer, W. (2008). First World War army service records: A guide for family historians (4. ed., repr.). National Archives.

Chicago Style (17th ed.) Citation

Spencer, William. First World War Army Service Records: A Guide for Family Historians. 4. ed., repr. Richmond, Surrey: National Archives, 2008.

MLA (9th ed.) Citation

Spencer, William. First World War Army Service Records: A Guide for Family Historians. 4. ed., repr. National Archives, 2008.