Bell, G. (2004). The permaculture way: Practical steps to create a self-sustaining world. Chelsea Green Pub. Co..
Chicago Style (17th ed.) CitationBell, Graham. The Permaculture Way: Practical Steps to Create a Self-sustaining World. White River Junction, Vt.: Chelsea Green Pub. Co., 2004.
MLA引文Bell, Graham. The Permaculture Way: Practical Steps to Create a Self-sustaining World. Chelsea Green Pub. Co., 2004.
警告:這些引文格式不一定是100%准確.