Cita APA (7a ed.)

(1990). A richer forest: State of the art in the 1990s, as regard nature conservation and ecology. The National Board of Forestry.

Cita Chicago Style (17a ed.)

A Richer Forest: State of the Art in the 1990s, as Regard Nature Conservation and Ecology. Sweden: The National Board of Forestry, 1990.

Cita MLA (8a ed.)

A Richer Forest: State of the Art in the 1990s, as Regard Nature Conservation and Ecology. The National Board of Forestry, 1990.