c-refcard-a4.pdf [(No file available)] Reference card v1.3 for C programming language (ANSI-C), designed by Joseph H. Silverman, Brown University (1999).

emacs-refcard-a4.pdf [(No file available)] Reference card v2.2 for GNU Emacs, designed by Stephen Gildea for Free Software Foundation, Inc (1997).

tex-refcard-a4.pdf [(No file available)] Reference card v1.3 for plain TeX, designed by Joseph H. Silverman, Brown University (1998).

php-refcard.pdf [(No file available)] Reference card v1.0 for the PHP 4 programming language, designed by Steven R. Gould (2002).