Cita APA (7th ed.)
ebrary, Inc, & Broecker, M. (2005). Heinz von Foerster: In memorium. Emerald Group Publishing.
Cita Chicago (17th ed.)
ebrary, Inc, i Monika Broecker. Heinz Von Foerster: In Memorium. Bradford, England: Emerald Group Publishing, 2005.
Cita MLA (9th ed.)
ebrary, Inc, i Monika Broecker. Heinz Von Foerster: In Memorium. Emerald Group Publishing, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.