Dyfyniad APA

Gerontological Society & Gerontological Society of America. The Gerontologist. Oxford Journals, Oxford University Press.

Dyfyniad Arddull Chicago

Gerontological Society and Gerontological Society of America. The Gerontologist. [Cary, NC, etc.]: Oxford Journals, Oxford University Press.

Dyfyniad MLA

Gerontological Society and Gerontological Society of America. The Gerontologist. Oxford Journals, Oxford University Press.

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