Hahn, R. W. (1989). A primer on environmental policy design. Harwood Academic Pub.
芝加哥风格引文Hahn, Robert W. A Primer on Environmental Policy Design. Chur: Harwood Academic Pub, 1989.
MLA引文Hahn, Robert W. A Primer on Environmental Policy Design. Harwood Academic Pub, 1989.
警告：这些引文格式不一定是100％准确.