TY  - SER
AU  - Berg, Gordon L.,
TI  - Agri-Fieldman and Consultant Vol. 29 (4,5), Vol. 33 (2), Vol. 34 (1,2,3,5)
U1  - 630 
PY  - 1977///-78
CY  - Ohio
PB  - Meister Publishing Co.
KW  - Agriculture. & related technologies
ER  -