APA引文

(1999). Voluntary approaches for environmental policy: An assessment. OECD Publications Services.

芝加哥风格引文

Voluntary Approaches for Environmental Policy: An Assessment. Paris, France: OECD Publications Services, 1999.

MLA引文

Voluntary Approaches for Environmental Policy: An Assessment. OECD Publications Services, 1999.

警告:这些引文格式不一定是100%准确.