APA
Kristoferson L. A., Bokalders V., . (1986). Renewable energy technologies. New York: Pergamon Press.
Chicago
Kristoferson Lars A, Bokalders Varies, . 1986. Renewable energy technologies. New York: Pergamon Press.
Harvard
Kristoferson L. A., Bokalders V., . (1986). Renewable energy technologies. New York: Pergamon Press.
MLA
Kristoferson Lars A, Bokalders Varies, . Renewable energy technologies. New York: Pergamon Press. 1986.