I expected this simple, but cannot find any good source. Assume there are two sources, source A and source B. Both are different from each other, that is A provides some info on a problem, B provides other info. I would like to cite the combination. Something like: I do ... because ... (And, 2008; Byl, 2012). I realize I could split it somehow, but just assume that this combination makes sense in my context. Is the above way correct? I thought the ";" can only be used if both sources say the same thing. But here they are different parts, adding up together.
Thanks for any hints how to handle this correctly.