Não informado. (2004). Eurasian Journal of Forest Research. Hokkaido University Forests.
Chicago (17e ed.) BronvermeldingNão informado. Eurasian Journal of Forest Research. Sapporo, Japão: Hokkaido University Forests, 2004.
MLA (8e ed.) BronvermeldingNão informado. Eurasian Journal of Forest Research. Hokkaido University Forests, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.