APA (7th ed.) Citation

Straub, D. (1999). Osa and Martin Johnsons' famous Sikorsky flying boats.

Chicago Style (17th ed.) Citation

Straub, Dave. Osa and Martin Johnsons' Famous Sikorsky Flying Boats. 1999.

MLA (9th ed.) Citation

Straub, Dave. Osa and Martin Johnsons' Famous Sikorsky Flying Boats. 1999.

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