Regulatory issues with importing foreign logs to North America

by Fons, J.F. (Animal and Plant Health Inspection Service, Hyattsville, MD (USA)), Empresa Brasileira de Pesquisa Agropecuaria, Colombo (Brazil). Centro Nacional de Pesquisa de Florestas oth, Conferencia Regional da Vespa da Madeira, Sirex noctilio, na America do Sul eng 23-27 Nov 1992 Florianopolis (Brazil), FAO, Rome (Italy). Forestry Dept. eng
Published 1993