Ruiz Badilla, S. (2009). Distance Education: Notes about Its Origins and Fair Value as a Practical and Powerful Resource for Permanent Education in Light of Intergenerational Change.
استشهاد بنمط شيكاغوRuiz Badilla, Silvia. Distance Education: Notes About Its Origins and Fair Value As a Practical and Powerful Resource for Permanent Education in Light of Intergenerational Change. 2009.
MLA استشهادRuiz Badilla, Silvia. Distance Education: Notes About Its Origins and Fair Value As a Practical and Powerful Resource for Permanent Education in Light of Intergenerational Change. 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.