Send the output of the getref command to a printer:

	  refdbc: 
	  getref -c lpr :ID:>0
	

You should probably be a bit more selective about the references than shown above unless you want to empty the paper tray of your printer. In any case, this command will print a list of your references in the screen output format. You can use some additional plumbing along these lines to obtain a more beautiful printer output:

	  refdbc: 
	  getref :ID:>0 -c 'pr -f | fmt -w 70 | lpr'
	

The second option is to write the HTML output to a file and use your browser's print capabilities.