APA (7th ed.) Citation

Howson, G. (1990). Aircraft of the Spanish Civil War, 1936-39. Putnam Aeronautical.

Chicago Style (17th ed.) Citation

Howson, Gerald. Aircraft of the Spanish Civil War, 1936-39. London: Putnam Aeronautical, 1990.

MLA (9th ed.) Citation

Howson, Gerald. Aircraft of the Spanish Civil War, 1936-39. Putnam Aeronautical, 1990.