TY  - BOOK
AU  - Laville Henri
AU  -  Rigaud Jean-Philippe
TI  - Rock shelters of the perigord: geological stratigraphy and archaeological
T2  - Studies in archaeology
U1  - H551, M0 
PY  - 1980///
CY  - New York    
PB  -  Academic Press       
KW  - Stratigraphy
ER  -