APA

The PROMETHEUS Thematic Working Group 4, Man-Machine Interaction [WG4/MMI], . (1991). MMI checklist. Version 2.1. Göteborg: The PROMETHEUS Thematic Working Group 4.

Chicago

The PROMETHEUS Thematic Working Group 4, Man-Machine Interaction [WG4/MMI], . 1991. MMI checklist. Version 2.1. Göteborg: The PROMETHEUS Thematic Working Group 4.

Harvard

The PROMETHEUS Thematic Working Group 4, Man-Machine Interaction [WG4/MMI], . (1991). MMI checklist. Version 2.1. Göteborg: The PROMETHEUS Thematic Working Group 4.

MLA

The PROMETHEUS Thematic Working Group 4, Man-Machine Interaction [WG4/MMI], . MMI checklist. Version 2.1. Göteborg: The PROMETHEUS Thematic Working Group 4. 1991.