John Piggott, A. W. (2016). Handbook of the Economics of Population Aging. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)John Piggott, Alan Woodland. Handbook of the Economics of Population Aging. ELSEVIER, 2016.
Lua MLA (8ú heag.)John Piggott, Alan Woodland. Handbook of the Economics of Population Aging. ELSEVIER, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.