APA (7th ed.) Citation

Shapiro, J. (1957). The helicopter / by J. Shapiro. Muller.

Chicago Style (17th ed.) Citation

Shapiro, J. The Helicopter / by J. Shapiro. Muller, 1957.

MLA (9th ed.) Citation

Shapiro, J. The Helicopter / by J. Shapiro. Muller, 1957.

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