Bhagavantam, S. Theory of groups and its application to physical problems / by S Bhagavantam and T Venkatarayudu - 2nd ed. - Waltair: Andhra University , 1948 - xiii, 277 p. : ill. ; 22 cm. Subjects--Topical Terms: Groups theory. Dewey Class. No.: 512.86 BHA