Nand, Brahma Groups theory / by Brahma Nand, B. S. Tyagi and R. L. Gupta. - Meerut : Shalini prakashan, 1973-1974 - vi, 74p. ; 22x15cm. ISBN: : Rs.7 Subjects--Topical Terms: MATHEMATICS- GROUP THEORY Dewey Class. No.: 512.22 / NAN-GRO