Green, W., & Punnett, D. (1971). The observer's book of aircraft: Describing 185 aircraft with 335 illustrations (Twentieth edition 1971.). Frederick Warne & Co Ltd.
Chicago-Zitierstil (17. Ausg.)Green, William, und Dennis Punnett. The Observer's Book of Aircraft: Describing 185 Aircraft with 335 Illustrations. Twentieth edition 1971. London ; New York: Frederick Warne & Co Ltd, 1971.
MLA-Zitierstil (9. Ausg.)Green, William, und Dennis Punnett. The Observer's Book of Aircraft: Describing 185 Aircraft with 335 Illustrations. Twentieth edition 1971. Frederick Warne & Co Ltd, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.