Mushkin, Selma J.; Small, Leila Nancy; Scitovsky, Anne A. (1946). Social Insurance Financing in Relation to Consumer Income and Expenditures. Federal Security Agency, Social Security Board, Bureau of Research and Statistics. hdl:2027/mdp.39015077748682. OCLC572257000.[page needed][non-primary source needed]
Mushkin, Selma J.; Small, Leila Nancy; Scitovsky, Anne A. (1946). Social Insurance Financing in Relation to Consumer Income and Expenditures. Federal Security Agency, Social Security Board, Bureau of Research and Statistics. hdl:2027/mdp.39015077748682. OCLC572257000.[page needed][non-primary source needed]