Gaya APA

Bateman, I. et al (1994). Environmental economics : and elementary introduction / R. Kerry Turner, David Pearce, Ian Bateman . New York: Harverter Wheatsheaf.

Gaya MLA

Bateman, Ian. et al. "Environmental economics : and elementary introduction / R. Kerry Turner, David Pearce, Ian Bateman". New York: Harverter Wheatsheaf, 1994. Textbook.