APA Citation

Demissie, A., Ayres, R. C., & Briggs, R. (1988). Old age in Down's syndrome.

Chicago Style Citation

Demissie, A., R C. Ayres, and R. Briggs. Old Age in Down's Syndrome. 1988.

MLA Citation

Demissie, A., R C. Ayres, and R. Briggs. Old Age in Down's Syndrome. 1988.

Warning: These citations may not always be 100% accurate.