Παραπομπή σε μορφή APA (7η εκδ.)

ebrary, Inc, & Czaja, S. J. (1990). Human factors research needs for an aging population. National Academy Press : Additional copies of this report are available from National Research Council.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ebrary, Inc, και Sara J. Czaja. Human Factors Research Needs for an Aging Population. Washington, D.C.: National Academy Press : Additional copies of this report are available from National Research Council, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

ebrary, Inc, και Sara J. Czaja. Human Factors Research Needs for an Aging Population. National Academy Press : Additional copies of this report are available from National Research Council, 1990.