Butler Rebecca P. (2012). Copyright for teachers and librarians in the 21st century. Ess Ess publications.
استشهاد بنمط شيكاغوButler Rebecca P. Copyright for Teachers and Librarians in the 21st Century. New Delhi: Ess Ess publications, 2012.
MLA استشهادButler Rebecca P. Copyright for Teachers and Librarians in the 21st Century. Ess Ess publications, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.