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 (9th ed.) Citation

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