TY  - BOOK
AU  - CLAY David E
AU  -  SHANAHAN John F
TI  - GIS applications in agriculture. Vol.2
SN  - 9781138627819
U1  - U672(J):D6,9(B), Q7.2/TD 
PY  - 2017///
CY  - London
PB  - CRC Press         
KW  - Geography
ER  -