APA
Portney P. R. e., Dower R. C. . e., Freeman A. M. e., Russell C. S. . e. & Shapiro M. (1990). Public Policies for Enviornmental Protection. Washington D. C: Resources for the Future.
Chicago
Portney Paul R ed, Dower Roger C ed, Freeman A Myrick ed, Russell Clifford S ed and Shapiro Michael. 1990. Public Policies for Enviornmental Protection. Washington D. C: Resources for the Future.
Harvard
Portney P. R. e., Dower R. C. . e., Freeman A. M. e., Russell C. S. . e. and Shapiro M. (1990). Public Policies for Enviornmental Protection. Washington D. C: Resources for the Future.
MLA
Portney Paul R ed, Dower Roger C ed, Freeman A Myrick ed, Russell Clifford S ed and Shapiro Michael. Public Policies for Enviornmental Protection. Washington D. C: Resources for the Future. 1990.
