Não informado. (1938). Philippine Journal of Forestry. Department of Agriculture and Natural Resources.
Chicago Style (17. basım) AtıfNão informado. Philippine Journal of Forestry. Manila: Department of Agriculture and Natural Resources, 1938.
MLA (8th ed.) AtıfNão informado. Philippine Journal of Forestry. Department of Agriculture and Natural Resources, 1938.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..