Douglas, T. (1983). Groups: Understanding-- together. Tavistick.
Chicago-čujuhus (17. p.)Douglas, Tom. Groups: Understanding-- Together. London: Tavistick, 1983.
MLA-čujuhus (9. p.)Douglas, Tom. Groups: Understanding-- Together. Tavistick, 1983.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.