(2002). Seventy-seventh annual report: 2001. Oxford Forestry Institute, University of Oxford.
Citazione stile Chigago Style (17a edizione)Seventy-seventh Annual Report: 2001. Oxford Forestry Institute, University of Oxford, 2002.
Citatione MLA (9a ed.)Seventy-seventh Annual Report: 2001. Oxford Forestry Institute, University of Oxford, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.