Não informado. (1972). Forestry digest. University of the Philippines, College of Forestry, Department of Forestry.
Chicago-Zitierstil (17. Ausg.)Não informado. Forestry Digest. Laguna, Filipinas: University of the Philippines, College of Forestry, Department of Forestry, 1972.
MLA-Zitierstil (8. Ausg.)Não informado. Forestry Digest. University of the Philippines, College of Forestry, Department of Forestry, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.