Are you a or do you already know some Modern Standard Arabic?
If you are deciding which version or companion to get, consider these official Routledge and Amazon listings: Beginner to Intermediate Best For Serious learners, business travelers, long-term residents Format Paperback with available MP3/CD audio Focus Spoken Gulf/Saudi Arabic (Khaleeji) If you'd like to narrow this down, let me know: Colloquial Arabic of the Gulf and Saudi Arabia:...
Colloquial Arabic of the Gulf and Saudi... book by Clive Holes Are you a or do you already know some Modern Standard Arabic