APA

Roberge J. M., Angelstam P., .Usefulness of the umbrella species concept as a conservation tool. : .

Chicago

Roberge Jean Michel, Angelstam Per, .Usefulness of the umbrella species concept as a conservation tool. : .

Harvard

Roberge J. M., Angelstam P., .Usefulness of the umbrella species concept as a conservation tool. : .

MLA

Roberge Jean Michel, Angelstam Per, .: . .