Need help with re-installation

We've just moved into a new house that has an Electrolux Pyrolytic, under counter electric oven. It seems that previous owners had it disconnected and we cannot find cords or wires for re-connection. Is this a job for a professional, or is it something we can manage? If we can do it, would anyone know where we would find the cord/wire on the oven - it doesn't seem to be in back..?

Thank you