APA (7e ed.) Bronvermelding

Não informado. (1972). Forestry digest. University of the Philippines, College of Forestry, Department of Forestry.

Chicago (17e ed.) Bronvermelding

Não informado. Forestry Digest. Laguna, Filipinas: University of the Philippines, College of Forestry, Department of Forestry, 1972.

MLA (8e ed.) Bronvermelding

Não informado. Forestry Digest. University of the Philippines, College of Forestry, Department of Forestry, 1972.

Let op: Deze citaties zijn niet altijd 100% accuraat.