Help interpreting bookcase plans

Hi folks,

I am embarking on what is a big challenge for me, building a set of bookcases based on a Wood set of plans. I wanted to check in on something and see if I could get some help interpreting the plans before I get too far along. I’ll include pictures of the plans to try to make my question clear.

The bookcase is made from 3/4” oak plywood. The plans seem to be calling for a 3/4” rabbet on top of the sides (A) but if a 3/4” top (B) goes into that rabbet, wouldn’t that mean that the top (B) would be sitting proud of the top?

See this picture of the plans for what I mean. I inserted a red arrow pointing to the rabbet in question and the test next to it says “3/4” rabbets, 1/4” deep. I wonder if that is a mistake and it should read 1/4” rabbet, 3/4” deep?

Here’s a picture from the plans that show the cabinet top detail. From the picture it does look like the top is flush with the sides which, I think, would have to mean that the rabbet is 3/4” deep?

Any help is appreciated.

Nathan