APA (7th ed.) Citation

Wirth, D. (1991). Ballooning. Marshall Editions.

Chicago Style (17th ed.) Citation

Wirth, Dick. Ballooning. London: Marshall Editions, 1991.

MLA (9th ed.) Citation

Wirth, Dick. Ballooning. Marshall Editions, 1991.

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