APA (7th ed.) Citation

RN, B. (2000). The dependency ratio: Mathematics of old versus young don't add up when all factors are considered. Geriatrics, 55(4), 11.

Chicago Style (17th ed.) Citation

RN, Butler. "The Dependency Ratio: Mathematics of Old Versus Young Don't Add Up When All Factors Are Considered." Geriatrics 55, no. 4 (2000): 11.

MLA (9th ed.) Citation

RN, Butler. "The Dependency Ratio: Mathematics of Old Versus Young Don't Add Up When All Factors Are Considered." Geriatrics, vol. 55, no. 4, 2000, p. 11.