APA question (date order)

makislog

I am citing two works from the same authors. The first one is a book (1988) and the other one is an article (1990).
The citation I get is (Zamble & Porporino, 1990, 1988)

Shouldn't the dates be the other way round?

poettli

By chance, do you have different first names for the authors?

makislog

That was it, thank you!