Pettersson, R. (2013). Predecessors & pioneers. Institute for Infology.
芝加哥风格引文Pettersson, Rune. Predecessors & Pioneers. Tullinge: Institute for Infology, 2013.
MLA引文Pettersson, Rune. Predecessors & Pioneers. Institute for Infology, 2013.
警告：这些引文格式不一定是100％准确.