TY  - BOOK
AU  - Lockward, C.R.
AU  - Putnam,J.A. : Carpenter, R.D.
TI  - Log defects in southern hardwoods 
U1  - 634.972 21st ed
PY  - 1950///
CY  - Washington
PB  - United state government office
KW  - Hardwood
KW  - Log
ER  -