Shree Book Centre. (2019). 501 Incredible Facts (2019.). Shree Book Centre.
芝加哥风格引文Shree Book Centre. 501 Incredible Facts. 2019. Shree Book Centre, 2019.
MLA引文Shree Book Centre. 501 Incredible Facts. 2019. Shree Book Centre, 2019.
警告：这些引文格式不一定是100％准确.