TY  - BOOK
AU  - Coe, William R
TI  - Piedras Negras archaelogy: artifacts, caches and burials 
AV  - F 1219.1.P6 C6
PY  - 1959///
CY  - Philadelphia, Pa.
PB  - The University Museum
KW  - Arqueología -
KW  - Coahuila -
KW  - Piedras Negras
ER  -