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How to Format and Cite an Appendix in APA Style

The sixth edition APA style manual addresses appendices and supplemental materials in section 2.13 and on page 230, and details the following:

  • The appendices follow the reference list.
  • They are lettered A, B, C, and so forth.
  • Figures and tables in the appendices are labeled A1, A2, B1, and so forth, according to the appendix in which they appear. (Note: Omit the letter if there is only one appendix.)
  • A blank divider page is unnecessary between appendices unless it lends to readability or if a heading cannot be placed on the first page of an appendix. (Typically this could happen when you insert a scanned document that takes up an entire page.)
  • The materials in the appendix must not extend beyond the margins of the rest of the paper: Reduce the appendix materials as needed.

As a general guide, appendices are appropriate for the following:

  1. List of stimulus materials
  2. Detailed description of complex piece of equipment
  3. List of articles that provided source data for a meta-analysis
  4. Detailed demographic description of subpopulations in the study. (APA, 2010, p. 39)

When citing an appendix one could use the following format:

Author. (year). Appendix A of Title of work. Location: Publisher.

Click Here to see an example of an appendix.