MLA

Smith, Stephen. Environmental Protection: an Economic Asset: Seven Arguments for Not Setting a Lead In Environmental Protection ... and What We Think of Them. Berlin, 1994.

APA

Smith, S. (1994). Environmental protection: an economic asset: seven arguments for not setting a lead in environmental protection ... and what we think of them. Berlin.

Chicago

Smith, Stephen Environmental Protection: an Economic Asset: Seven Arguments for Not Setting a Lead In Environmental Protection ... and What We Think of Them. Berlin, 1994.