TY  - BOOK
AU  - Johnson, Frederick
TI  - The prehistory of the Tehuacan Valley
U1  - 972.01 
PY  - 0000///19 -
CY  - Austin
PB  - University opf Texas
KW  - Irrigación
KW  - Historia
KW  - México
KW  - Epoca prehispánica
N1  - La biblioteca tiene: v.4 Chronology and irrigation
ER  -