Não informado. (1971). Canadian Journal of Forest Research. National Research Council.
Chicago (17e ed.) BronvermeldingNão informado. Canadian Journal of Forest Research. Ottawa: National Research Council, 1971.
MLA (8e ed.) BronvermeldingNão informado. Canadian Journal of Forest Research. National Research Council, 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.