Não informado. (2022). Tree Planters' Notes. U.S. Department of Agriculture, Forest Service.
Chicago-viite (17. p.)Não informado. Tree Planters' Notes. Washington: U.S. Department of Agriculture, Forest Service, 2022.
MLA-viite (8. p.)Não informado. Tree Planters' Notes. U.S. Department of Agriculture, Forest Service, 2022.
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