Are you trying to create a single dataset to use in your report? If so, it looks like you can union the results together.

SELECT...

FROM v_SomeView

WHERE...

UNION ALL

SELECT...

FROM v_SomeOtherView

WHERE...

and then just pass your params in all the WHERE clauses. (they would use the same parameters but map to the proper fields).

Or did you mean return 3 distinct result sets?