Abello, M. M. (2013). New labor-saving technologies for tobacco farmers. Agriculture.
芝加哥风格引文Abello, Melpha M. "New Labor-saving Technologies for Tobacco Farmers." Agriculture 2013.
MLA引文Abello, Melpha M. "New Labor-saving Technologies for Tobacco Farmers." Agriculture, 2013.
警告：这些引文格式不一定是100％准确.