TY  - BOOK
AU  - Butzer, Karl W.
AU  - Butzer, Karl W.
TI  - Early hydraulic civilization in Egypt : a study in cultural ecology
U1  - V671:710G:5 
PY  - 1976///
CY  - Chicago
PB  - The Univ Press
KW  - V671:710G:5
ER  -