APA
Hodge I., . (1995). Environmental economics. New York: St. Martins Press.
Chicago
Hodge Ian, . 1995. Environmental economics. New York: St. Martins Press.
Harvard
Hodge I., . (1995). Environmental economics. New York: St. Martins Press.
MLA
Hodge Ian, . Environmental economics. New York: St. Martins Press. 1995.