Bradley, D. P., & Lothner, D. C. (1987). Achieving wood energy potentials: Evidence in Northeastern Minnesota. North Central Forest Experiment Station.
Citazione stile Chigago Style (17a edizione)Bradley, Dennis P., e David C. Lothner. Achieving Wood Energy Potentials: Evidence in Northeastern Minnesota. Minnesota: North Central Forest Experiment Station, 1987.
Citatione MLA (9a ed.)Bradley, Dennis P., e David C. Lothner. Achieving Wood Energy Potentials: Evidence in Northeastern Minnesota. North Central Forest Experiment Station, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.