TY  - BOOK
AU  - Porter, Philip W
TI  - Challenging nature: Local knowledge, Agroscience, and food s
T2  - University of Chicago geography research paper
SN  - 226675807
U1  - 338.10967822/POR 
PY  - 2006///
CY  - Chicago
PB  - Uni of Chicago Pr
ER  -