APA (7th ed.) Citation

Knudsen, J. B. (1999). The unofficial guide to LEGO Mindstorms robots. O'Reilly.

Chicago Style (17th ed.) Citation

Knudsen, Jonathan B. The Unofficial Guide to LEGO Mindstorms Robots. Beijing [u.a.]: O'Reilly, 1999.

MLA (9th ed.) Citation

Knudsen, Jonathan B. The Unofficial Guide to LEGO Mindstorms Robots. O'Reilly, 1999.

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