Penguin book
1948
1948
1946
1943
1948
1945
1940
1951
1946-1950
1946
1942
1947
1950
1951
1950
1951
1940-1945
circa 1950
1940
1951
1940-1944
1942
2000-100 BCE
1943
1944-1945
1944
1945
1938 and 1951
1940
1947
1946-1948
1948
1940
1942
1946
1940-1949
1941-1950
circa 1950
1946
1955; 1830
1948
1950-1951
1945
1951
1949
1950
1951
1949
1950
1949
1946