Pedigrees of Negro families.
Gates, R. Ruggles
Pedigrees of Negro families. - Philadelphia Blakiston Co. 1949. - vii, 267 p. illus.
49005655 //r872
Heredity, Human.
Black race
Blacks
QH431 / .G36
575.12
Pedigrees of Negro families. - Philadelphia Blakiston Co. 1949. - vii, 267 p. illus.
49005655 //r872
Heredity, Human.
Black race
Blacks
QH431 / .G36
575.12