Search the library catalog for more E-Books and books at the library. To locate E-Books only, conduct search and limit by selecting the E-Books format link (found on left of search results display). Here is a selected list. The first few cover middle range theories. These might help you identify a theory.
Search the library catalog for more books at the library. To locate books only, conduct a search and limit by selecting Print Books Only limit (found on left of search results display). Here is a selected list.