APA (7th ed.) Citation

Chang, P. L. (1986). A robotic system used to trace marks on a 3-D surface employing vision and direction sensing. [publisher not identified].

Chicago Style (17th ed.) Citation

Chang, Po Lam. A Robotic System Used to Trace Marks on a 3-D Surface Employing Vision and Direction Sensing. [Place of publication not identified]: [publisher not identified], 1986.

MLA (9th ed.) Citation

Chang, Po Lam. A Robotic System Used to Trace Marks on a 3-D Surface Employing Vision and Direction Sensing. [publisher not identified], 1986.