APA (7th ed.) Citation

Kauffmann & Theilig & Kergaßner, W. (1995). Headquarter Datagroup. ARCH+.

Chicago Style (17th ed.) Citation

Kauffmann & Theilig and Wolfgang Kergaßner. "Headquarter Datagroup." ARCH+ 1995.

MLA (8th ed.) Citation

Kauffmann & Theilig and Wolfgang Kergaßner. "Headquarter Datagroup." ARCH+, 1995.

Warning: These citations may not always be 100% accurate.