If each issue of a journal begins with page 1, give the issue number in parentheses after the volume number. The issue and page numbers are not italicized.
Blanco, P. J., & Ray, D. C. (2011). Play therapy in elementary schools: A best practice for improving academic achievement. Journal of Counseling & Development, 89(2), 235-243. http://dx.doi.org/10.1002/j.1556-6678.2011.tb00083.x
(American Psychological Association, 2010, pp. 184-186)