APA način citiranja

Callan, S. J., & Thomas, J. M. (1996). Environmental Economics and Management: Theory, Policy and Applications. Chicago: Irwin.

Čikaški stil citiranja

Callan, Scott J., i Janet M. Thomas. Environmental Economics and Management: Theory, Policy and Applications. Chicago: Irwin, 1996.

MLA način citiranja

Callan, Scott J., i Janet M. Thomas. Environmental Economics and Management: Theory, Policy and Applications. Chicago: Irwin, 1996.