Dyfyniad APA

Doress, P. B., & Siegal, D. L. (1988). Ourselves growing older. New York: Simon and Schuster.

Dyfyniad Arddull Chicago

Doress, Paula Brown, và Diana Laskin Siegal. Ourselves Growing Older. New York: Simon and Schuster, 1988.

Dyfyniad MLA

Doress, Paula Brown, và Diana Laskin Siegal. Ourselves Growing Older. New York: Simon and Schuster, 1988.

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