APA (7th ed.) Citation

International Conference on Human-Computer Interaction & Bullinger, H. (1991). Human aspects in computing: Proceedings of the Fourth International Conference on Human-Computer Interaction, Stuttgart, F.R. Germany, September 1-6, 1991. Elsevier.

Chicago Style (17th ed.) Citation

International Conference on Human-Computer Interaction and Hans-Jörg Bullinger. Human Aspects in Computing: Proceedings of the Fourth International Conference on Human-Computer Interaction, Stuttgart, F.R. Germany, September 1-6, 1991. Amsterdam [etc.]: Elsevier, 1991.

MLA (9th ed.) Citation

International Conference on Human-Computer Interaction and Hans-Jörg Bullinger. Human Aspects in Computing: Proceedings of the Fourth International Conference on Human-Computer Interaction, Stuttgart, F.R. Germany, September 1-6, 1991. Elsevier, 1991.