APA (7th ed.) Citation

Wallmark, L., & Chu, A. (2015). Ada Byron Lovelace and the thinking machine. Creston Books, LLC..

Chicago Style (17th ed.) Citation

Wallmark, Laurie, and April Chu. Ada Byron Lovelace and the Thinking Machine. Berkeley: Creston Books, LLC., 2015.

MLA (8th ed.) Citation

Wallmark, Laurie, and April Chu. Ada Byron Lovelace and the Thinking Machine. Creston Books, LLC., 2015.

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