TY  - JA
AU  - Triplett,G.B.Jr
AU  - Van Doren,D.M.Jr
TI  - Agriculture without tillage [USA]
U1  - 77-197215 
PY  - 1977///
KW  - Cultivation
KW  - AGROVOC
KW  - USA
T2  - Scientific American
ER  -