APA (7th ed.) Citation

Hammond, T. A., Davis, R., & Laboratory, M. I. o. T. C. S. a. A. I. (2012). Creating the Perception-based LADDER sketch recognition language. Association for Computing Machinery (ACM).

Chicago Style (17th ed.) Citation

Hammond, Tracy A., Randall Davis, and Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory. Creating the Perception-based LADDER Sketch Recognition Language. Association for Computing Machinery (ACM), 2012.

MLA (9th ed.) Citation

Hammond, Tracy A., et al. Creating the Perception-based LADDER Sketch Recognition Language. Association for Computing Machinery (ACM), 2012.