This is a reference card for zsh. It was created based on version 3.1.9 so is a little out-of-date. It is seven pages long, even with three columns per page, so you will need a very big piece of card to stick it to.
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F. Solms. Proceedings of the South African Institute for Computer Scientists and Information Technologists Conference, Seite 363--373. New York, NY, USA, ACM, (2012)
S. Clarke. End-User Software Engineering, Volume 07081 von Dagstuhl Seminar Proceedings, Internationales Begegnungs- und Forschungszentrum für Informatik (IBFI), Schloss Dagstuhl, Germany, (2007)