TY  - BOOK
AU  - Falk,I.S.
AU  - Sanders,Barkev Sahak
AU  - Federman,David
TI  - Disability among gainfully occupied persons: an introduction to disability insurance statistics
AV  - HD7123 .A35 no. 61
PY  - 1945///
CY  - Washington, D.C.
PB  - Federal security agency, Social security board, Bureau of research and statistics
N1  - "List of references": p. 58-60
ER  -