Dyfyniad APA
LITWIN, H. (1999). SUPPORT NETWORK TYPE AND PATTERNS OF HELP GIVING AND RECEIVING AMONG OLDER PEOPLE.
Dyfyniad Arddull Chicago
LITWIN, H. SUPPORT NETWORK TYPE AND PATTERNS OF HELP GIVING AND RECEIVING AMONG OLDER PEOPLE. 1999.
Dyfyniad MLA
LITWIN, H. SUPPORT NETWORK TYPE AND PATTERNS OF HELP GIVING AND RECEIVING AMONG OLDER PEOPLE. 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.