APA (7th ed.) Citation

Birdsall, S., & Freeman, R. A. (1994). The B-17 flying fortress. Arms and Armour.

Chicago Style (17th ed.) Citation

Birdsall, Steve, and Roger A. Freeman. The B-17 Flying Fortress. London: Arms and Armour, 1994.

MLA (9th ed.) Citation

Birdsall, Steve, and Roger A. Freeman. The B-17 Flying Fortress. Arms and Armour, 1994.

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