APA (7th ed.) Citation

Decker & Hirshfield. (1998). The analytical engine: An introduction to computer science using the internet. PWS Publishing Company.

Chicago Style (17th ed.) Citation

Decker and Hirshfield. The Analytical Engine: An Introduction to Computer Science Using the Internet. London: PWS Publishing Company, 1998.

MLA (9th ed.) Citation

Decker and Hirshfield. The Analytical Engine: An Introduction to Computer Science Using the Internet. PWS Publishing Company, 1998.

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