(1998). World commission on forests and sustainable development: Internal discussion draft. Manitoba, Canada: WCFSD.
Παραπομπή Chicago StyleWorld Commission On Forests and Sustainable Development: Internal Discussion Draft. Manitoba, Canada: WCFSD, 1998.
Παραπομπή MLAWorld Commission On Forests and Sustainable Development: Internal Discussion Draft. Manitoba, Canada: WCFSD, 1998.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.