TY  - BOOK
ED  - U. S. Department of Agriculture
TI  - Pig crops by states, 1955 - 59 , sows farrowing, pigs per litter, pigs saved: : selected states, 1954 - 59, inventory numbers by quarters (Revised estimates)
U1  - 73 SD:338.14 
PY  - 1961///
CY  - Washington
PB  - U. S. Department of Agriculture
ER  -