APA
Linda Jacobs, . (1943). Letting Off Steam. The Story Of Geothermal Energy. Minnesota: Carolrhoda Books.
Chicago
Linda Jacobs, . 1943. Letting Off Steam. The Story Of Geothermal Energy. Minnesota: Carolrhoda Books.
Harvard
Linda Jacobs, . (1943). Letting Off Steam. The Story Of Geothermal Energy. Minnesota: Carolrhoda Books.
MLA
Linda Jacobs, . Letting Off Steam. The Story Of Geothermal Energy. Minnesota: Carolrhoda Books. 1943.
