APA Guide for Business Students (6th ed.): Journals

1. Follow The same rules as citing magazine articles with a few additions.
2. Journal articles require only the year.
3. A DOI number is a unique number for an electronic (web) item such as a journal articles or an ebook. Inde the DOI number, of available, at the end of the citation. This replaces "Retrieved from"
4. If a DOI is not available include URL after Retrieved from

Example

Shiue, C. H., & Keller. W. (2007). Markets in china and europe on the
      eve of the industrial revolution. The American Economic
      Review, 97(4), 1189-1216. doi:10.1257/are.97.4. 1189
OR
Shiue, C. H., & Keller. W. (2007). Markets in china and europe on the
      eve of the industrial revolution. The American Economic
      Review, 97(4), 1189-1216. Retrieved from
      http://onlinelibrary.wiley.com/journal/

In-Text Citation → (Shiue & Keller, 2007)