APA (7th ed.) Citation

Bowyer, C. (1973). De Havilland D.H.9A (R.A.F. 1918-30). Profile Publications.

Chicago Style (17th ed.) Citation

Bowyer, Chaz. De Havilland D.H.9A (R.A.F. 1918-30). Windsor, England: Profile Publications, 1973.

MLA (9th ed.) Citation

Bowyer, Chaz. De Havilland D.H.9A (R.A.F. 1918-30). Profile Publications, 1973.