Schumacher, E. F. (1979). Good work. Harper and Row.
Chicago-čujuhus (17. p.)Schumacher, E. F. Good Work. New York: Harper and Row, 1979.
MLA-čujuhus (9. p.)Schumacher, E. F. Good Work. Harper and Row, 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.