Ravindra kumar, G., & Subhash, N. (2004). Earth system science and natural resources management. Centre for earth science studies.
استشهاد بنمط شيكاغوRavindra kumar, G.,ed, و N.,ed.by Subhash. Earth System Science and Natural Resources Management. Thiruvanathapuram: Centre for earth science studies, 2004.
MLA استشهادRavindra kumar, G.,ed, و N.,ed.by Subhash. Earth System Science and Natural Resources Management. Centre for earth science studies, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.