Personal communications that are not published are not included in a References list.
Personal communciations can include:
If a personal communication is published or can otherwise be retrieved, follow the citation guidelines for archival documents on pages 212-215 of the APA Manual (6th ed.).
Personal interviews are not included in the reference list because they do not provide recoverable data. Cite them in text only.
Adapted from Hacker/Sommers, The Bedford Handbook, 8th ed.