ummm dried citrus!, no seriously, dried orange peel works pretty well for my "blue moon" clones that I create. But in order to not just get the aroma, treat it like a hop and add it with your flavor hops. I guess it would really depend on what style of brew you are doing, it will probably take a couple batches worth of experimentation, but it's probably a 30 minute adjunct for enough flavor to actually penetrate your brew.
I make no guarantees, but I also don't "very often" make bad beer either !
Also, your yeast choice effects the citrus "nodes" in a brew as well as the hops!