social formations in the mid-first millennium B.C. in the Ganga Valley Thapar, Romila. creator text New Delhi Oxford University Press c1984, 1990 monographic 189 p. : ill., map ; 23 cm. Romila Thapar. Includes index. Bibliography: p. [175]-189. Ganges River Valley (India and Bangladesh) History India History To 324 B.C DS485.G25 T46 1984 0195613945 : 85121995 20181127175854.0 5612