Citazione Stile APA (7a Edizione)

Brown, K. S., & Robertson, B. (1964). Von Richthofen and the flying circus. Harleyford Publications.

Citazione stile Chigago Style (17a edizione)

Brown, Kimbrough S., e Bruce Robertson. Von Richthofen and the Flying Circus. Letchworth, Herts.: Harleyford Publications, 1964.

Citatione MLA (8a ed.)

Brown, Kimbrough S., e Bruce Robertson. Von Richthofen and the Flying Circus. Harleyford Publications, 1964.