APA (7th ed.) Citation

Barber, H. (2007). The Aeroplane Speaks Fifth Edition. Project Gutenberg.

Chicago Style (17th ed.) Citation

Barber, H. The Aeroplane Speaks Fifth Edition. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Barber, H. The Aeroplane Speaks Fifth Edition. Project Gutenberg, 2007.

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