APA-referens

(2010). Best practice guidance for effective methane drainage and use in local mines No-31. UN.

Chicago-stil citat

Best Practice Guidance for Effective Methane Drainage and Use in Local Mines No-31. New York: UN, 2010.

MLA-referens

Best Practice Guidance for Effective Methane Drainage and Use in Local Mines No-31. UN, 2010.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.