TY  - BOOK
AU  - Hayden C, Robert
TI  - Seven black american scientists
SN  - 978-0-201-02828-7
U1  - 925 - 
PY  - 1970///
CY  - Massachusetts: 
PB  - Wesley, 
KW  - Biografias
KW  - Cientificos
N1  - 1970
ER  -