TY  - BOOK
AU  - Miller,D.G.
AU  - Tardif,Y.
TI  - Devt.of a vibration grader & comparison of vibration grading with visual & mechan.grading
PY  - 1967///
PB  - Dep.Forestry & Rural Devt.,Canada,Publ.Forestry Branch Dep.,1208,24pp.
ER  -