Greenberg, V. E. (1989). Respecting your limits when caring for aging parents. Jossey-Bass Publishers.
Dyfyniad Arddull ChicagoGreenberg, Vivian E. Respecting Your Limits When Caring for Aging Parents. California: Jossey-Bass Publishers, 1989.
Dyfyniad MLAGreenberg, Vivian E. Respecting Your Limits When Caring for Aging Parents. Jossey-Bass Publishers, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.