Não informado. (1938). Philippine Journal of Forestry. Department of Agriculture and Natural Resources.
Citação do estilo Chicago (17ª ed.)Não informado. Philippine Journal of Forestry. Manila: Department of Agriculture and Natural Resources, 1938.
Citação MLA (8ª ed.)Não informado. Philippine Journal of Forestry. Department of Agriculture and Natural Resources, 1938.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.