International Union of Forestry Research Organisations\nUnion Internationale des Instituts de Techerches Forestières\nInternationaler Verband Forstlicher Forschungsanstalten. (1972). IUFRO News. International Union of Forestry Research Organizations.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিInternational Union of Forestry Research Organisations\nUnion Internationale des Instituts de Techerches Forestières\nInternationaler Verband Forstlicher Forschungsanstalten. IUFRO News. As, Noruega: International Union of Forestry Research Organizations, 1972.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিInternational Union of Forestry Research Organisations\nUnion Internationale des Instituts de Techerches Forestières\nInternationaler Verband Forstlicher Forschungsanstalten. IUFRO News. International Union of Forestry Research Organizations, 1972.