Austin Lewis, Proletarian and Petit-Bourgeois (1912)
“ By all the kinds of labor we do not mean merely all the crafts, but in addition factors which have been overlooked in the organization of crafts—factors which appear at each end of the productive apparatus—at the one end, clerks, salesmen, stenographers, telephone operators, telegraphers, and all the non-handworking staff which is essential to the practical handling of a great business, and at the other end the unskilled laborers who are equally essential but so far unorganized and unrecognized. ”
