Hesseling, P. (1982). Effective organization research for development. Pergamon.
Chicago-čujuhus (17. p.)Hesseling, Pjotr. Effective Organization Research for Development. Oxford: Pergamon, 1982.
MLA-čujuhus (9. p.)Hesseling, Pjotr. Effective Organization Research for Development. Pergamon, 1982.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.