APA (7th ed.) Citation

Hardy, D. (2021). Wargames terrain and buildings: WWI trench systems. Pen & Sword Military.

Chicago Style (17th ed.) Citation

Hardy, Douglas. Wargames Terrain and Buildings: WWI Trench Systems. Barnsley: Pen & Sword Military, 2021.

MLA (8th ed.) Citation

Hardy, Douglas. Wargames Terrain and Buildings: WWI Trench Systems. Pen & Sword Military, 2021.

Warning: These citations may not always be 100% accurate.