Não informado. (1972). Forestry digest. University of the Philippines, College of Forestry, Department of Forestry.
Citação do estilo Chicago (17ª ed.)Não informado. Forestry Digest. Laguna, Filipinas: University of the Philippines, College of Forestry, Department of Forestry, 1972.
Citação MLA (8ª ed.)Não informado. Forestry Digest. University of the Philippines, College of Forestry, Department of Forestry, 1972.
警告：这些引文格式不一定是100％准确.