S+L and Potkettleblack are both absolutley right. Personally, I'd go for radial+DME from a VOR, using potkettleblack's syntax, as it's easier to plot on a chart. You could also use a VOR or an NDB.
Also worth pointing out that the points must be a maximum of 50nm apart. It doesn't matter if they are less than 49nm apart.
FFF
--------------