Não informado. (1972). Forestry digest. University of the Philippines, College of Forestry, Department of Forestry.
Chicagoスタイル(17版)引用形式Não informado. Forestry Digest. Laguna, Filipinas: University of the Philippines, College of Forestry, Department of Forestry, 1972.
MLA(8版)引用形式Não informado. Forestry Digest. University of the Philippines, College of Forestry, Department of Forestry, 1972.
警告: この引用は必ずしも正確ではありません.