Three tables with some matching data and some not - want to data from all three

I have three tables Costs (47 rows) Budgets (60 rows) Committed Costs (12 rows) All three have the same 2 fields and than a number JobNumber, CostCode, (either costs, budget, commitedcosts) They all have the same JobNumber and they all CostCode in common. However they also each have unique CostCodes. I need to run a query that would get me results from all three tables like this: JobNumber, CostCode, Costs, Budgets, CommitedCosts Currently I am using outer joins on the three tables and only getting 47 results since the Costs table is the first table selected from.