Olla, P. (2015). Global sustainable development and renewable energy systems. Information Science Reference.
استشهاد بنمط شيكاغوOlla, Phillip. Global Sustainable Development and Renewable Energy Systems. Information Science Reference, 2015.
MLA استشهادOlla, Phillip. Global Sustainable Development and Renewable Energy Systems. Information Science Reference, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.