APA

Larsen J. A., . (1988). The northern forest border in Canada and Alaska : biotic communities and ecological relationships. New York: Springer-Verlag.

Chicago

Larsen James A, . 1988. The northern forest border in Canada and Alaska : biotic communities and ecological relationships. New York: Springer-Verlag.

Harvard

Larsen J. A., . (1988). The northern forest border in Canada and Alaska : biotic communities and ecological relationships. New York: Springer-Verlag.

MLA

Larsen James A, . The northern forest border in Canada and Alaska : biotic communities and ecological relationships. New York: Springer-Verlag. 1988.