TY  - BOOK
AU  - Van Cleef,Eugene
TI  - Trade centers and trade routes
T2  - The Century earth science series
U1  - 38752 16
PY  - 1937///
CY  - New York, London
PB  - D. Appleton-Century company, incorporated
KW  - Commerce
KW  - Trade routes
KW  - Commercial geography
N1  - Includes index
ER  -