APA (7th ed.) Citation

Ege, L., Munson, K., Hildesheim, E., & Frello, O. (1974). Balloons and airships (First American edition 1974.). Macmillan.

Chicago Style (17th ed.) Citation

Ege, Lennart, Kenneth Munson, Erik Hildesheim, and Otto Frello. Balloons and Airships. First American edition 1974. New York: Macmillan, 1974.

MLA (9th ed.) Citation

Ege, Lennart, et al. Balloons and Airships. First American edition 1974. Macmillan, 1974.