APA引文

Siebert,Horst. (1998). Economics of the environment: Theory and policy (5.). Springer Verlag.

Chicago Edition Citation

Siebert,Horst. Economics of the Environment: Theory and Policy. 5. Berlin: Springer Verlag, 1998.

MLA引文

Siebert,Horst. Economics of the Environment: Theory and Policy. 5. Springer Verlag, 1998.

警告：這些引文格式不一定是100％准確.