Books & Journals
Give in parentheses the year the work was published.
Levy, S. (2011). In the plex: How Google thinks, works, and shapes our lives. New York, NY: Simon & Schuster.
If no date is available write (n.d.). in parentheses.
Heuristic. (n.d.). In Merriam-Webster’s online dictionary (11th ed.). Retrieved from http://www.m-w.com/dictionary/heuristic
Citation (“Heuristic,” n.d., para. 1).
Do not include retrieval dates unless the source material material may change over time (e.g., Wikis)
Bank Street College of Education (n.d.). In Wikipedia. Retrieved December 2, 2016, from https://en.wikipedia.org/wiki/Bank_Street_College_of_Education
(American Psychological Association, 2010, pp. 171, 185, 192)