APA (7th ed.) Citation

Siegel, J. S. (1996). Aging into the 21st century. National Aging Information Center, Administration on Aging.

Chicago Style (17th ed.) Citation

Siegel, Jacob S. Aging into the 21st Century. Bethesda, MD (7830 Old Georgetown Rd, Suite 100, Bethesda 20814-2434): National Aging Information Center, Administration on Aging, 1996.

MLA (9th ed.) Citation

Siegel, Jacob S. Aging into the 21st Century. National Aging Information Center, Administration on Aging, 1996.