TY  - BK
AU  - Burrill,L.C.
AU  - Cardenas,J.
AU  - Locatelli,E.
TI  - Field manual for weed control research
T2  - AID Publication - U.S. Agency for International Development (USA)
U1  - 78-290766 
PY  - 1976///
KW  - Weeds and weed control
ER  -