TY  - SER
AU  - Johnson,Frederick
TI  - Archeology in an emergency: the federal goverment's inter-agency archaeological salvage program is 20 years old
KW  - Archéologie de sauvetage
KW  - Politique gouvernementale
KW  - Parc national
KW  - Etats Unis
N1  - <Donation Engel>
ER  -