Waters, W. E., Heikkinen, E., & Dontas, A. S. (1989). Health, lifestyles and services for the elderly. World Health Organization, Regional Office for Europe.
Čikaški stil citiranja (17. izdanje)Waters, W. E., E. Heikkinen, i A. S. Dontas. Health, Lifestyles and Services for the Elderly. Copenhagen: World Health Organization, Regional Office for Europe, 1989.
MLA način citiranja (9. izdanje)Waters, W. E., et al. Health, Lifestyles and Services for the Elderly. World Health Organization, Regional Office for Europe, 1989.
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