TY  - BOOK
AU  - Earle,Timothy K.
AU  - Ericson,Jonathan
TI  - Exchange systems in prehistory
SN  - 0122276507
PY  - 1977///
CY  - New York
PB  - Academic Press
KW  - Commerce, Prehistoric
KW  - Addresses, essays, lectures
N1  - Includes bibliographical references and index
ER  -