TY  - SER
AU  - Lewis Williams, J. D.
TI  - Entoptic Phenomena in Upper Palaeolithic Art'
T2  - Current Anthropolgy ; 
PY  - 1988///
CY  - Chicago-US : 
PB  - Department of Human Sciences, 
N1  - Artículo dentro de: The Sign of All Times
ER  -