Competency - Books in Print

I actually enjoyed the books in print database. Here are my results.
SS1: collection develop* (kw in ti)
AND school librar* (kw in sub)
Published in United States - yielded only 3 records. All of them were good, but I thought I may be missing some.
SS2: Collection Develop* (kw in sub) to broaden results
AND school librar* (kw in sub)
Published in United States - yielded 8 records, although 3 of them were repeats, so really 5 records. I stopped there because all of the records were useful to me. I chose this e-book record: