For a first printing of an edition, should the Print year or the Copyright year be cited as the publication date?
Whenever you have tricky issues like this, go back to the basics of why we reference works at all.

The aim of a reference is to help the reader locate a copy of the work, so that they can replicate or investigate your results or argument.

So ignore the publisher's gaming of the copyright year — which suggests to the reader that book is an advance copy, and thus not available from the publisher, but only from the paper's author and other 'insider' sources — and use the date the work was actually available to the reader from the publisher.