Não informado. (1967). Forestry bulletin. Clemson University, Department of Forestry.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Forestry Bulletin. Clemson, SC: Clemson University, Department of Forestry, 1967.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Forestry Bulletin. Clemson University, Department of Forestry, 1967.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.