APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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