McDiarmid, O. J. (1977). Unskilled labor for development its economic cost. The Johns Hopkins University.
Chicago-referens (17:e uppl.)McDiarmid, Orville John. Unskilled Labor for Development Its Economic Cost. The Johns Hopkins University, 1977.
MLA-referens (9:e uppl.)McDiarmid, Orville John. Unskilled Labor for Development Its Economic Cost. The Johns Hopkins University, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.