TY  - BOOK
AU  - Ward,Harriet
TI  - World powers in the twentieth century
SN  - 0563162252
PY  - 1978///
CY  - British Broadcasting Corporation : London ; Heinemann Educational Books
KW  - World politics
KW  - 1945
KW  - United States
KW  - History
KW  - 20th century
KW  - Soviet Union
KW  - 1917
KW  - China
N1  - Includes bibliographies and index
ER  -