(2002). Seventy-seventh annual report: 2001. Oxford Forestry Institute, University of Oxford.
Chicago-čujuhus (17. p.)Seventy-seventh Annual Report: 2001. Oxford Forestry Institute, University of Oxford, 2002.
MLA-čujuhus (9. p.)Seventy-seventh Annual Report: 2001. Oxford Forestry Institute, University of Oxford, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.