Dyfyniad APA

John Piggott, A. W. (2016). Handbook of the Economics of Population Aging. ELSEVIER.

Dyfyniad Arddull Chicago

John Piggott, Alan Woodland. Handbook of the Economics of Population Aging. ELSEVIER, 2016.

Dyfyniad MLA

John Piggott, Alan Woodland. Handbook of the Economics of Population Aging. ELSEVIER, 2016.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.