TY - BOOK AU - C.R. Silversides AU - U. Sundberg, TI - Operational efficiency in forestry. Vol 2, Practice SN - 0-7923-0063-7 U1 - 634.9 PY - 1989/// CY - London PB - Kluwer Academic Publishers N1 - C.R. Silversides & U. Sundberg: Operational efficiency in forestry. Vol 2, Practice. London. Kluwer Academic Publishers, 1989. 0-7923-0063-7--(634.9SIL) ER -