TY  - BK
AU  - Dum,S.A.
AU  - Adams,R.S.
AU  - Baylor,J.E.
AU  - Grout,A.R.
ED  - Pennsylvania State University. Cooperative Extension Service
TI  - Silage and silos [Cost and return planning, farm management systems, Pennsylvania]
U1  - 78-254940 
PY  - 1977///
KW  - Farm organization and management
KW  - Feed processing
KW  - Pennsylvania
T2  - Special Circular - Pennsylvania State University, Extension Service (USA). no. 223 Jun 1977. 30 p
ER  -