TY  - BOOK
AU  - Cumber,R.A.
AU  - Todd,D.H.
TI  - Serious outbreak of the aphid,Rhopalosiphum padi(L.)in North Island wheat,oat & barley crops during 1958
PY  - 1959///
PB  - Nw Zealand J.Agr.Res.,Vol.2(4),773-784pp.
ER  -