APA (7th ed.) Citation

Ffoulkes. (1969). The gun-founders of England (2nd edition.). Arms and Armour Press.

Chicago Style (17th ed.) Citation

Ffoulkes. The Gun-founders of England. 2nd edition. London: Arms and Armour Press, 1969.

MLA (8th ed.) Citation

Ffoulkes. The Gun-founders of England. 2nd edition. Arms and Armour Press, 1969.

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