Handbook of Assessment in Clinical Gerontology by 
Handbook of Gerontology: Evidence-Based Approaches to Theory, Practice, and Policy by Reference resources include encyclopedias, dictionaries, handbooks, and other materials that provide background or introductory research. Print resources sometimes do not circulate (i.e. are not available for check out).
To browse reference books, perform some of the following keyword searches in the "Books and Media" tab of the UNT Library Catalog:
Credo Reference is a good go-to "Reference" database for concept maps, terminology help and more.
Credo Reference UNT Libraries linked off of the Discover Catalog link
