APA
Haugland T., Olsen Ø. & Roland K. (1990). Stabilizing CO2-emissions by carbon taxes. Lysaker: Fridtjof Nansen Institute.
Chicago
Haugland Torleif, Olsen Øystein and Roland Kjell. 1990. Stabilizing CO2-emissions by carbon taxes. Lysaker: Fridtjof Nansen Institute.
Harvard
Haugland T., Olsen Ø. and Roland K. (1990). Stabilizing CO2-emissions by carbon taxes. Lysaker: Fridtjof Nansen Institute.
MLA
Haugland Torleif, Olsen Øystein and Roland Kjell. Stabilizing CO2-emissions by carbon taxes. Lysaker: Fridtjof Nansen Institute. 1990.