APA-Zitierstil (7. Ausg.)

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

Chicago-Zitierstil (17. Ausg.)

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

MLA-Zitierstil (9. Ausg.)

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