How to subpoena a witness in civil case Washington DC?

I have a civil case in Washington DC and I'm trying to find out what the process is to subpoena a witness in civil case.How to subpoena a witness in civil case Washington DC?
im going to assume that you are in a civil case in small claims, otherwise your attorney would do that work for you. typically you can call the clerk of court for information on what forms to complete, and what the fees are to file. you will probably also have to pay a fee to have the summons served. go to the courts website athttp://www.dccourts.gov/dccourts/superior/civil/small_claims.jsp How to subpoena a witness in civil case Washington DC?
I didn't know that you could just ';subpoena'; a witness. I think that you have to have power or authority to subpoena someone or something. You may have a whole new civil rights case on your hands if you try to subpoena someone.
Go to the clerk of the court. Ask for a subpoena. Fill it out. Serve it.