APA

Hudson S. E., Association for Computing Machinery, ACM Special Interest Group on Computer Graphics and Interactive Techniques & ACM Special Interest Group on Computer-Human Interaction. (1990). Proceedings of the 3rd annual ACM SIGGRAPH symposium on User interface software and technology. New York, NY: ACM.

Chicago

Hudson Scott E, Association for Computing Machinery, ACM Special Interest Group on Computer Graphics and Interactive Techniques and ACM Special Interest Group on Computer-Human Interaction. 1990. Proceedings of the 3rd annual ACM SIGGRAPH symposium on User interface software and technology. New York, NY: ACM.

Harvard

Hudson S. E., Association for Computing Machinery, ACM Special Interest Group on Computer Graphics and Interactive Techniques and ACM Special Interest Group on Computer-Human Interaction. (1990). Proceedings of the 3rd annual ACM SIGGRAPH symposium on User interface software and technology. New York, NY: ACM.

MLA

Hudson Scott E, Association for Computing Machinery, ACM Special Interest Group on Computer Graphics and Interactive Techniques and ACM Special Interest Group on Computer-Human Interaction. Proceedings of the 3rd annual ACM SIGGRAPH symposium on User interface software and technology. New York, NY: ACM. 1990.