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Direct-seeding pines in the South / Harold J. Derr and William F. Mann.
- 873
- U.S. Department of agriculture. Forest service,
- 1971.
- Washington, DC :
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Forest insect and disease conditions in the United States, 1973 / comp. by Division of forest pest control, state and private forestry.
- 873
- U.S. Department of agriculture. Forest service,
- 1975.
- Washington, DC :