Qayyum, A., & Zawacki-Richter, O. (2020). Open and Distance Education in Australia, Europe and the Americas. Springer Singapore.
استشهاد بنمط شيكاغوQayyum, Adnan, و Olaf Zawacki-Richter. Open and Distance Education in Australia, Europe and the Americas. Springer Singapore, 2020.
MLA استشهادQayyum, Adnan, و Olaf Zawacki-Richter. Open and Distance Education in Australia, Europe and the Americas. Springer Singapore, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.