APA (7th ed.) Citation

Sharkey, P., Murray, D., & Heuring, J. (1997). On the kinematics of robot heads.

Chicago Style (17th ed.) Citation

Sharkey, P., D. Murray, and J. Heuring. On the Kinematics of Robot Heads. 1997.

MLA (9th ed.) Citation

Sharkey, P., et al. On the Kinematics of Robot Heads. 1997.