Q. How do I cite a handout using APA?

This would be considered a personal communication and personal communications  are not included in your reference list.

instead, parenthetically cite the communicator's name, the phrase "personal communication," and the date of the communication in your main text only.

Parenthetical Citation:

(E. Robbins, personal communication, January 4, 2001).

Narrative Citation:

E. Robbins also claimed that many of her students had difficulties with APA style (personal communication, January 4, 2001).