TY  - BOOK
AU  - Black J D
ED  - Social Science Research Council
TI  - Research in transportation in relation to agriculture: scope and method
U1  - 307 
PY  - 1933///
CY  - New York
PB  - SSRC
KW  - Agriculture
KW  - Social science
KW  - Study & teaching
KW  - Transport
N1  - Bulletin no.8
ER  -