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MLA

MUKUND SHARMA, and YOGMAYA SHUKLA. "Occurrence of Helically Coiled Microfossil Obruchevella In the Owk Shale of the Kurnool Group and Its Significance." Journal of earth system science, v. 121 ,.3 pp. 755-768. doi: 10.1007/s12040-012-0182-x

APA

MUKUND SHARMA, M. SHARMA, & YOGMAYA SHUKLA, Y. SHUKLA. (0000). Occurrence of helically coiled microfossil Obruchevella in the Owk Shale of the Kurnool Group and its significance. Journal of earth system science, 121, 755-768. doi: 10.1007/s12040-012-0182-x

Chicago

MUKUND SHARMA, and YOGMAYA SHUKLA. "Occurrence of helically coiled microfossil Obruchevella in the Owk Shale of the Kurnool Group and its significance" Journal of earth system science 121, no. 3 (2012): 755-768. doi: 10.1007/s12040-012-0182-x