Dyfyniad APA

QUADAGNO, J. (1999). An Introduction to social gerontology aging and the life course. McGraw-Hill College.

Dyfyniad Arddull Chicago

QUADAGNO, Jill. An Introduction to Social Gerontology Aging and the Life Course. Boston: McGraw-Hill College, 1999.

Dyfyniad MLA

QUADAGNO, Jill. An Introduction to Social Gerontology Aging and the Life Course. McGraw-Hill College, 1999.

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