Web source with unknown date (APA)

APA-56

In-text citation

Attempts to establish a definitive link between television programming and children’s eating habits have been problematic (Magnus, n.d.).

Explain

When the source does not give a date, use the abbreviation “n.d.” (for “no date”).

Beginning of reference list entry

Magnus, A. D. (n.d.).

Directory to APA in-text citation models