The specific procedure for obtaining a legalised certificate of marriage should be verified by checking the relevant County Recorder’s Office Website.
However the process is not very different from the process described in UK and Ireland above.
Of course you will need to locate the relevant website for the area in which you were married in the US to get the correct procedure.
As before, once the certified certificate has been obtained you will need to send it to an official translator.
Once the legalised copy of the marriage/birth certificates have been arranged you will then need to hand them over to the procurador for presentation to the court.