Author:

Crane,P.R.;Stockey,R.A.

Year:

1985

Title:

An extinct species of Betula from the Middle Eocene of British Columbia.

Reference:

Crane,P.R. et al. (1985) An extinct species of Betula from the Middle Eocene of British Columbia. American Journal of Botany Vol. 72 # 6 P. 890- 890

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