A set of quick reference cards for yorick fits onto three double sided US letter sheets. The TeX source for these pages is refs.tex, which is part of the yorick source distribution. To print or to view them with Adobe Acrobat, download refs.pdf.
The original constraint to fit onto six sheets makes the organization of this Quick Reference somewhat illogical; in particular, the division between the "Language" and "Function" sheets is somewhat arbitrary. Note that the "I/O" sheet includes graphics.