TY  - RPRT
TI  - Differences in human pigmentation: measurement, geographic variation, and causes.
AU  - G A Harrison
PY  - 1973
DO  - 10.1111/1523-1747.ep12702616
UR  - https://pubmed.ncbi.nlm.nih.gov/4575896/
ID  - 4575896
ER  -