Reserved Network Numbers

Now for a brief excursion into the totally mundane. Can anyone point me to the internet-draft/RFC that specifies the "reserverd networks" (i.e. the class A,B, & C [sic] network numbers that are considered "safe" (no-one should be routing them) to use as test/intranet/private IP networks? I need to know all of the numbers, i.e. I believe 10.0.0.0 is the class A component of the list. Thanks in advance. Geoff White Virtual Sites