Etzel, B. (1996). Personal information management: Tools and techniques for achieving professional effectiveness. Macmillan.
استشهاد بنمط شيكاغوEtzel, Barbara. Personal Information Management: Tools and Techniques for Achieving Professional Effectiveness. London: Macmillan, 1996.
MLA استشهادEtzel, Barbara. Personal Information Management: Tools and Techniques for Achieving Professional Effectiveness. Macmillan, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.