Abello, M. M. (2009). Groups unite to push organic agriculture. Agriculture.
芝加哥风格引文Abello, Melpha M. "Groups Unite to Push Organic Agriculture." Agriculture 2009.
MLA引文Abello, Melpha M. "Groups Unite to Push Organic Agriculture." Agriculture, 2009.
警告：这些引文格式不一定是100％准确.