Hall, D. O., & Overend, R. P. (1987). Biomass regenerable energy. Wiley.
Chicago Style aipamenaHall, David Oakley, and R. P. Overend. Biomass Regenerable Energy. Chichester [West Sussex]: Wiley, 1987.
MLA aipamenaHall, David Oakley, and R. P. Overend. Biomass Regenerable Energy. Wiley, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.