APA (7th ed.) Citation

Penrose, H. (1973). British aviation : the adventuring years 1920-1929: The adventuring years 1920-1929. Putnam.

Chicago Style (17th ed.) Citation

Penrose, Harald. British Aviation : The Adventuring Years 1920-1929: The Adventuring Years 1920-1929. London: Putnam, 1973.

MLA (9th ed.) Citation

Penrose, Harald. British Aviation : The Adventuring Years 1920-1929: The Adventuring Years 1920-1929. Putnam, 1973.

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