APA
Vig N. J. (. &. K. M. E. (., . (2013). Environmental policy. SAGE, Los Angeles: .
Chicago
Vig Norman J (ed) & Kraft Michael E (ed), . 2013. Environmental policy. SAGE, Los Angeles: .
Harvard
Vig N. J. (. &. K. M. E. (., . (2013). Environmental policy. SAGE, Los Angeles: .
MLA
Vig Norman J (ed) & Kraft Michael E (ed), . Environmental policy. SAGE, Los Angeles: . 2013.