For more examples and guidelines on citing journal articles and other types of periodicals, please refer to Section 7.01, pages 198-202 of the Publication manual of the American Psychological Association (6th ed.).
Online magazine article
Online newspaper article
Newsletter article (no author)
Include the digital object indentifier (DOI) in the reference if one is assigned. If no DOI is assigned and you retreived the article online, include the homepage URL for the source that you are citing.
Journal article with DOI
Journal article without DOI (when DOI is not available or print version)
In-press article (not officially published yet)
Journal article with more than seven authors
Gilbert, D. G., McClernon, J. F., Rabinovich, N. E., Sugai, C., Plath, L. C.,
Asgaard, G., ... Botros, N. (2004). Effects of quitting smoking on EEG
activation and attention last for more than 31 days and are more severe
with stress, dependence, DRD2 A 1 allele, and depressive traits.
Nicotine and Tobacco Research, 6, 249-267.
Note: Use the following in-text citation: (Gilbert et al., 2004). When a
reference has up to seven authors, spell out all authors' names in the reference list.