Here are some sites that have some handy references:
http://prometheus.cc.emory.edu/MOO/MOO_QuickRef.html
http://www.well.ac.uk/wellclas/moo/moocommands.htm
http://tecfa.unige.ch/moo/book2/node24.html#SECTION02211000000000000000
What is Technical Communication?
15 years ago