APA
Jarman R., . (1977). The energy merchant. New York: R. Rosen Press.
Chicago
Jarman Rufus, . 1977. The energy merchant. New York: R. Rosen Press.
Harvard
Jarman R., . (1977). The energy merchant. New York: R. Rosen Press.
MLA
Jarman Rufus, . The energy merchant. New York: R. Rosen Press. 1977.