APA引文

Weizsacker, E. V. E. (2005). Factor four: Doubling wealth, haling resource use. Earthscan.

Chicago Edition Citation

Weizsacker, Ernst Von Etc. Factor Four: Doubling Wealth, Haling Resource Use. London: Earthscan, 2005.

MLA引文

Weizsacker, Ernst Von Etc. Factor Four: Doubling Wealth, Haling Resource Use. Earthscan, 2005.

警告：這些引文格式不一定是100％准確.