Camp, W. G. (2009). Managing our natural resources. Clifton Park, NY: Delmar Cengage Learning.
Trích dẫn kiểu ChicagoCamp, William G. Managing Our Natural Resources. Clifton Park, NY: Delmar Cengage Learning, 2009.
Deismireacht MLACamp, William G. Managing Our Natural Resources. Clifton Park, NY: Delmar Cengage Learning, 2009.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.