APA

Marks G., Association for Computing Machinery, . (1981). Proceedings of the Joint Conference on Easier and More Productive Use of Computer Systems. (Part - II) Human Interface and the User Interface - Volume 1981. New York, NY: ACM.

Chicago

Marks Gregory, Association for Computing Machinery, . 1981. Proceedings of the Joint Conference on Easier and More Productive Use of Computer Systems. (Part - II) Human Interface and the User Interface - Volume 1981. New York, NY: ACM.

Harvard

Marks G., Association for Computing Machinery, . (1981). Proceedings of the Joint Conference on Easier and More Productive Use of Computer Systems. (Part - II) Human Interface and the User Interface - Volume 1981. New York, NY: ACM.

MLA

Marks Gregory, Association for Computing Machinery, . Proceedings of the Joint Conference on Easier and More Productive Use of Computer Systems. (Part - II) Human Interface and the User Interface - Volume 1981. New York, NY: ACM. 1981.