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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, و 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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, و 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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.