OBISAKIN, L. O. (2014). Protocol for life: Guidelines on diplomatic, official and social manners. Somerest Ventures.
芝加哥风格引文OBISAKIN, Lawrence Olufemi. Protocol for Life: Guidelines on Diplomatic, Official and Social Manners. Somerest Ventures, 2014.
MLA引文OBISAKIN, Lawrence Olufemi. Protocol for Life: Guidelines on Diplomatic, Official and Social Manners. Somerest Ventures, 2014.
警告：这些引文格式不一定是100％准确.