There were instructions for knitting skirts in the round in Barbara Walker's book Knitting from the Top. I didn't read that chapter (and don't have the book anymore), but it might be a place to look. Maybe you can see if your local library has it.
There is no right way to knit; there is no wrong way to knit. So if anybody kindly tells you that what you are doing is "wrong," don't take umbrage; they mean well. Smile submissively, and listen, keeping your disagreement on an entirely mental level. They may be right, in this particular case, and even if not, they may drop off pieces of information which will come in very handy if you file them away carefully in your brain for future reference. ~Elizabeth Zimmerman