Cita APA (7th ed.)

Lopez, A. D. (1984). Demographic trends in the European region: Health and social implications. WHO.

Cita Chicago (17th ed.)

Lopez, Alan D. Demographic Trends in the European Region: Health and Social Implications. Copenhagen: WHO, 1984.

Cita MLA (9th ed.)

Lopez, Alan D. Demographic Trends in the European Region: Health and Social Implications. WHO, 1984.