bls_1247_1959.pdf
bls_1145_1954.pdf
nycirc_1980_08888.pdf
nycirc_1980_08917.pdf
nycirc_1979_08557.pdf
bls_1775-83_1973.pdf
bls_1900-16_1976.pdf
bls_1900-19_1976.pdf
bls_1900-45_1976.pdf
bls_1900-49_1976.pdf
bls_1900-67_1977.pdf
bls_1900-70_1977.pdf