Augustus Peabody Loring has written:

'A trustee's handbook' -- subject(s): Trusts and trustees

'A short account of the Massachusetts Constitutional convention, 1917-1919' -- subject(s): Massachusetts, Massachusetts. Constitutional Convention (1917-1919)

1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919 1919

Unemployment is split into these types: demand-deficient unemployment, frictional unemployment, and structural unemployment

disguised unemployment,open unemployment,under unemployment

The riots were sparked by postwar tensions of racism, unemployment, inflation, and violence by radical political groups. (Sourced from Wikipedia, available at http://en.wikipedia.org/wiki/Red_Summer_of_1919)