Sharma, D. K. (2009). Ionospheric response to the phenomena occurring below and above it: A summary. Universidad Nacional Autónoma de México.
Citazione stile Chigago Style (17a edizione)Sharma, D. K. Ionospheric Response to the Phenomena Occurring Below and Above It: A Summary. Universidad Nacional Autónoma de México, 2009.
Citatione MLA (9a ed.)Sharma, D. K. Ionospheric Response to the Phenomena Occurring Below and Above It: A Summary. Universidad Nacional Autónoma de México, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.