TY  - BOOK
AU  - Dickerson,Douglas Francis
AU  - Collings,Gilbeart H.
TI  - Directed studies in general agriculture,: an outline course with complete references for use in schools,
AV  - S531 .D49
U1  - 630.712 
PY  - 1944///]
CY  - [Grand Rapids, Minn.
PB  - Grand Rapids herald-review
KW  - Agriculture
KW  - Study and teaching
N1  - Cover-title; "Selected list of agricultural reference books": p. 1-2
ER  -