While general reference sources tend to be broad and multi-volumed works that cover a wide variety of topics and are great for quick reference, subject specific reference sources tend to focus on a specific discipline or subject within a discipline. Subject specific reference sources are useful for academic research because they tend to provide more depth about their subject matter and often point to other sources.
Be sure to to check out Auraria Library's subject guides for reference materials in many more subject areas!
The Handbook of International Trade and Finance by 
A Practical Guide to EMC Engineering by 
A Concise Handbook of Mathematics, Physics, and Engineering Sciences by 
The Oxford dictionary of art and artists by 
Monetizing entertainment : an insider's handbook for careers in the entertainment & music industry by 
Encyclopedia of the Harlem Renaissance by STAT!Ref Online is a cross-searchable, healthcare reference e-source that integrates core titles with evidence-based resources and innovative tools all in one location.
A Dictionary of Plant Sciences by 
The SAGE Encyclopedia of Children and Childhood Studies by 
Handbook of Research on Multicultural Education by 
The Wiley Blackwell Encyclopedia of Social Theory by Provides indexing and abstracts for more than 200 journals and magazines relevant for teachers and school administrators. Covers many areas relevant to education including assessment, curriculum, literacy, and pedagogy.
