Author, A., Author, B., Author, C., Author, D., & Author, E. (Date of publication). Title of journal article. Title of Journal, volume number(issue number), page range. Retrieval information
Figure 7. Crude smoking prevalence in 2006 census by occupational group (bars, with 95% CI) (Source: Edwards et al., 2012, p. 332)
Example—reference list entry
Edwards, R., Peace, J., Stanley, J., Atkinson, J., Wilson, N., & Thomson, G. (2012). Setting a good example? Changes in smoking prevalence among key occupational groups in New Zealand: Evidence from the 1981 and 2006 censuses. Nicotine & Tobacco Research, 14(3), 329-337. Retrieved from Academic Search Premier Database.
In-text citations
Because the image caption contains the information an in-text citation would normally, simply refer to the relevant Figure in the body of your assignment. E.g.:
Example—in-text citation
Figure 7 provides an illuminating picture of the correlation of different occupational groups and their smoking habits.
or
Smoking can be linked broadly to different occupational groups (see Figure 7).