Working with Spirits is less about spell work and more about rituals. Spirits are sentient, intelligent, wise and powerful entities. More intelligent and wise, in most cases, then we can hope to be while we are still alive. If you want to work with them as best as is possible you will have to show them respect, courtesy, kindness, etc. Treat them as the superior beings they should be considered as while also treating them as friends. You would not do this by summoning in the sense that summoning is usually considered. Instead you would request their help and hope that they accept.
Runemaster, you have recently joined Guild of Mages, a coven that I am in. If you look back to the third, fourth, and fifth pages of the coven forums you will find threads I posted that should help you with this. They are posted as necromancy lessons. If you need more details on how to find them I will send the names of the threads to you as well as what pages each are on in a message.