when browsing the Inquisitor Domain selection, each description includes the Source.
Where the source is the Core book, the description wrongly states "Paizo Inc. - Advanced Player's Guide".
The page number is correct for the core book, just the book name is wrong.
E.g. War or Good domain.
Those Domains which actually are in the APG correctly reference the APG.
(A distinguishing sign is that the Core book defines Domains in pp. 41-48;
the APG defines (Sub)Domains pp.
Pathfinder core supplements