TY  - GEN
AU  - Donahue,Roy Luther
AU  - Christiansen James E
TI  - Exploring agriculture: an introduction to food and agriculture 
T2  - Prentice-Hall vocational agriculture series
AV  - S495.E9  
U1  - 630 
PY  - 1969///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall, 
KW  - Agriculture
KW  - United States
N1  - Previous editions by E. F. Evans; Bibliography: p. 443-449
ER  -