Bradley, D. P., & Lothner, D. C. (1987). Achieving wood energy potentials: Evidence in Northeastern Minnesota. North Central Forest Experiment Station.
Chicago-čujuhus (17. p.)Bradley, Dennis P., juo David C. Lothner. Achieving Wood Energy Potentials: Evidence in Northeastern Minnesota. Minnesota: North Central Forest Experiment Station, 1987.
MLA-čujuhus (9. p.)Bradley, Dennis P., juo David C. Lothner. Achieving Wood Energy Potentials: Evidence in Northeastern Minnesota. North Central Forest Experiment Station, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.