Hakkila, P. (1991). Hakkuupoistuman latvusmassa: = Crown mass of trees at the harvesting phase. Metsäntutkimuslaitos.
Chicago Style (17th ed.) CitationHakkila, Pentti. Hakkuupoistuman Latvusmassa: = Crown Mass of Trees at the Harvesting Phase. Helsinki: Metsäntutkimuslaitos, 1991.
MLA (9th ed.) CitationHakkila, Pentti. Hakkuupoistuman Latvusmassa: = Crown Mass of Trees at the Harvesting Phase. Metsäntutkimuslaitos, 1991.
Warning: These citations may not always be 100% accurate.