APA

Sikorski M., Association for Computing Machinery, . (2005). Proceedings of the 4th international workshop on Task models and diagrams. New York, NY: ACM.

Chicago

Sikorski Marcin, Association for Computing Machinery, . 2005. Proceedings of the 4th international workshop on Task models and diagrams. New York, NY: ACM.

Harvard

Sikorski M., Association for Computing Machinery, . (2005). Proceedings of the 4th international workshop on Task models and diagrams. New York, NY: ACM.

MLA

Sikorski Marcin, Association for Computing Machinery, . Proceedings of the 4th international workshop on Task models and diagrams. New York, NY: ACM. 2005.