Caldicott, H. (1992). If you love this planet: A plan to heal the earth. W.W. Norton.
芝加哥风格引文Caldicott, Helen. If You Love This Planet: A Plan to Heal the Earth. New York: W.W. Norton, 1992.
MLA引文Caldicott, Helen. If You Love This Planet: A Plan to Heal the Earth. W.W. Norton, 1992.
警告：这些引文格式不一定是100％准确.