TY  - BOOK
ED  - National Research Council (U.S.).
TI  - Precision agriculture in the 21st century: geospatial and information technologies in crop management 
SN  - 0309058937 (cloth)
U1  - 338.1/6 21
PY  - 1997///
CY  - Washington, D.C.
PB  - National Academy Press
KW  - Precision farming
KW  - Nông nghiệp
N1  - Includes bibliographical references (p. 120-132) and index
ER  -