00236nam a2200097Ia 4500080001800000245002700018260005200045300001400097500000800111583001900119  a08.07.01 A832  aEconomic value of wood  bJaakko Poyry International OYaHelsinkiFIc1980  a11, 34 p.  aIDS  c3/7/00kM2LMGR