Reports on Christmas tree production problems : papers presented at the Seventh Annual Ornamental Short Course, Oregon State University, February, 1963
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Reports on Christmas tree production problems : papers presented at the Seventh Annual Ornamental Short Course, Oregon State University, February, 1963
Published June 1963. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog