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APA 6 Style Guide

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Encyclopedia and Dictionary – APA Reference List

General Tips

  • Capitalization: Book title and chapter title – Sentence case.
  • State/Country: Include two-letter state code (if U.S.A) or name of country (if not U.S.A.).
  • If more than one city of publication is listed in the book you are citing, use the first one listed.

Encyclopedia or Dictionary – Print version

  • If there is no author or editor of the entry, as in the last example, place the title in the author position.


Author, A. A., & Author, B. B. (Year published). Title of entry. A. A. Editor, & B. B. Editor (Eds.), Title of encyclopedia (pp. xxx-xxx). Location: Publisher.


  • Chen, J. Q. (2003). Intelligence: Multiple intelligences. In J. Guthrie (Ed.), Encyclopedia of education (pp. 1198-1201). New York, NY: Macmillan.
  • Goethals, G. R., Sorenson, G. J., & Burns, J. M. (Eds.). (2004). Encyclopedia of leadership. Thousand Oaks, Ca: Sage Publications.
  • Moore, C. (1992). Mass Spectrometry. In Encyclopedia of chemical technology (4th ed., Vol. 15, pp. 1071-1094). New York, NY: Wiley.
  • VandenBos, G. R. (Ed.). (2007). APA dictionary of psychology. Washington, DC: American Psychological Association.

Encyclopedia or Dictionary – Electronic version


Author, A. A. (Year published). Title of entry. Title of encyclopedia. doi:xx.xxxxxxxxxx [OR] Retrieved from URL of publication's home page


  • Etzkowitz, H., & Dziah, J. (2009). University-industry relationships. In J. B. Callicott, & R. Froderman (Eds.), Encyclopedia of environmental ethics and philosophy (Vol. 2, pp. 344-346). Retrieved from
  • Hanegraaff, W. (2005). New Age movement. In L. Jones (Ed.), Encyclopedia of religion (2nd ed., Vol. 10). Retrieved from
  • Heuristic. (n.d.). Merriam-Webster online dictionary. Retrieved from
  • Masolo, D. (1997). African Sage philosophy. In Stanford encyclopedia of ehilosophy. Retrieved from
  • Psychology. (n.d.). In Wikipedia. Retrieved February 20, 2013, from
  • Portugal. (2007).  In J. J. Arnett (Ed.), International encyclopedia of adolescence (Vol. 2, pp.795-812). New York, NY: Routlege.
  • Social constructionism. (2009). In J. Scott & G. Marshall (Eds.), A dictionary of sociology (3rd rev. ed.). Retrieved from Oxford Reference Online Premium database.

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