Clark, G., Forbes, D., & Johns, G. (1975). On the concept of welfare. Institute of British Geographers.
Chicago-čujuhus (17. p.)Clark, G., D. Forbes, juo G. Johns. On the Concept of Welfare. Institute of British Geographers, 1975.
MLA-čujuhus (9. p.)Clark, G., et al. On the Concept of Welfare. Institute of British Geographers, 1975.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.