TY - BOOK AU - Harkonen , Pekka AU - Pettersson , Bengt, ed. TI - The chainsaw: use and maintenance SN - 9185748005 U1 - 621.93 21st ed. PY - 1979/// CY - Sweden PB - National Board of Forestry KW - Chainsaw KW - Saw industry KW - Saws-Maintenance and repair ER -