TY  - BOOK
AU  - Zarit Steven H. Ed.
AU  -  Pearlin Leonard I. Ed.
TI  - Caregiving systems :  Informal and formal helpers
U1  - S38, N3 
PY  - 1993///
CY  - Hillsdale
PB  - Lawrence Erlbaum Associates Publishers    
KW  - PSYCHOLOGY
ER  -