TY  - CHAP
A1  - Kahn, R.L.
A1  - Antonucci, T.C.
T1  - Convoys over the life course: Attachment, roles, and social support
Y1  - 1980
A3  - Baltes, P.B.
A3  - Brim, O.G.
T2  - Life-span development and behavior
CY  - San Diego
PB  - Academic Press

ER  -