Databases to find books: 
OPAC  

Not in the OPAC? Try: 
Interlibrary Loan 
Link+ 
WorldCat  

For more information: 

Books for the Arts and the Humanities & Social Sciences

• Take longer to publish than articles
• Compilations & summaries of research
• Background information

Reference books:

• General and specialized encyclopedias and dictionaries
• Print periodical indexes for older newspaper and journal articles

EXAMPLE: [MLA]
Ehrenberg, Ronald G. Labor Markets and Integrating National Economies.
      Washington, D.C: Brookings Institution, 1994.