Dyfyniad APA
Irving, P. H., & Beamish, R. (2014). The upside of aging: How long life is changing the world of health, work, innovation, policy, and purpose. Wiley.
Dyfyniad Arddull Chicago
Irving, Paul H., and Rita Beamish. The Upside of Aging: How Long Life Is Changing the World of Health, Work, Innovation, Policy, and Purpose. Hoboken, New Jersey: Wiley, 2014.
Dyfyniad MLA
Irving, Paul H., and Rita Beamish. The Upside of Aging: How Long Life Is Changing the World of Health, Work, Innovation, Policy, and Purpose. Wiley, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.