'92 Lumina Power Steering Pump

I need to replace the power steering pump on my '92 Lumina and I can save $20 by buying one without the reservoir. Does anyone know how to remove the existing reservoir? The Haynes manual doesn't say anything about it.

Do you have a 3.1L or 3.4L. Cheapest place I found when I replaced the pump on my Z34 was Auto Zone $69 complete with resevior. You can even check there prices online.