APA

U. S. Forest Product Laboratory, . (1961). Charcoal : production, marketing and use. Estados Unidos: Departament of Agriculture Forest Service.

Chicago

U. S. Forest Product Laboratory, . 1961. Charcoal : production, marketing and use. Estados Unidos: Departament of Agriculture Forest Service.

Harvard

U. S. Forest Product Laboratory, . (1961). Charcoal : production, marketing and use. Estados Unidos: Departament of Agriculture Forest Service.

MLA

U. S. Forest Product Laboratory, . Charcoal : production, marketing and use. Estados Unidos: Departament of Agriculture Forest Service. 1961.