Forum:SH Archive/Dac/Mon Calamari

Something I've come across is that Mon Calamri is also called Dac (which I didn't know before). When talking about the planet though, do we call it Dac, or Mon Calamari? For instance, under the 'Locations' heading of a book, what we use? I've seen both used in the same article. Sorry i'f I'm missing a point somewhere.