(1958). Chronic Illness in the United States.
Dyfyniad Arddull ChicagoChronic Illness in the United States. 1958.
Dyfyniad MLAChronic Illness in the United States. 1958.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
(1958). Chronic Illness in the United States.
Dyfyniad Arddull ChicagoChronic Illness in the United States. 1958.
Dyfyniad MLAChronic Illness in the United States. 1958.