APA
Harris J. M., . (2006). Environmental and natural resource economics. Boston: Houghton Mifflin.
Chicago
Harris Jonathan M, . 2006. Environmental and natural resource economics. Boston: Houghton Mifflin.
Harvard
Harris J. M., . (2006). Environmental and natural resource economics. Boston: Houghton Mifflin.
MLA
Harris Jonathan M, . Environmental and natural resource economics. Boston: Houghton Mifflin. 2006.