APA-viite (7. p.)

Clark, G., Forbes, D., & Johns, G. (1975). On the concept of welfare. Institute of British Geographers.

Chicago-viite (17. p.)

Clark, G., D. Forbes, ja G. Johns. On the Concept of Welfare. Institute of British Geographers, 1975.

MLA-viite (9. p.)

Clark, G., et al. On the Concept of Welfare. Institute of British Geographers, 1975.