Evocation For Non-christians, How do Pagans do it? Options

So I've recently been reading Summoning Spirits. It's an interesting book, but something that struck me is that the rituals in it are as Jewish as the proverbial Bar Mitzvah.

This begs a couple of questions.

1) How do people who adhere to non-Abrahamic religions perform evocations?
2) Are these rituals intended to imply that Judaism genuinely is "the truth," in a supreme or objective sense, to a greater degree than that of other religious systems?

I use my own system for summoning/banishing and evoking/invoking (which I've explained elsewhere on these forums somewhere several years ago) - because, quite honestly, so much of the mechanics and explanations of the archaic paradigms fails to be accurate according to my experience.

I still very much enjoy browsing through the various pantheons from the ol' systems to study how they are put together and inspire me to refine the structure and dynamics of mine. But I do not do any workings with their deities because, well again, they are always "off" in some way that causes my magickal workings along this line to produce erratic results.

This general path - Doing It Oneself! (so to speak) - definitely is a road-less-travelled.
Saying it is a challenge being my own Magickal Code Monkey is comedic understatement.

Yet I have enjoyed consistent success doing so.