RT Article T1 Skin tone and stratification in the black community JF The American journal of sociology VO 97 IS 3 SP 760 OP 778 A1 Keith, Verna M. A2 Herring, Cedric LA English YR 1991 UL https://krimdok.uni-tuebingen.de/Record/1912704528 DO 10.1086/229819