Citing an Observation in an Outside Source
If you reference another author's observations in your paper, include the text that those observations are found in in your reference list. For example, say you are referencing an observation found in a book. The basic APA reference list format for a book is:
Author Lastname, First Initial(s). (Year). Title of book: Subtitle if applicable. Publication Location: Publisher.
So a reference might appear as follows:
George, J. (1965). The jungle, firsthand. New York, NY: Penguin Books.
When referencing or quoting an observation in the body of your paper, include an in-text citation to let your reader know its source. This should include the author name, year of publication and page number, if applicable.
The lions appeared to be more interested in "socializing like a team of high schoolers" than in direct aggressive behavior (George, 1965, p. 183).
Citing a Personal Observation
If you are referencing a personal observation, you do not include a source in your reference list; the only exception is if you are referencing a previous paper or book you have written. Otherwise, your observation is cited in text only as a "personal communication." The personal communication in-text citation does not require an author name. However, include the month and day of the observation in your citation:
The cars appeared to be turning around the corner more quickly than they had yesterday (personal communication, July 24, 2008).
Personal communication citations can also be used for interviews you have conducted or notes you have taken.