IYER, R. N. (2020). The Gupta Vidya: :the pilgrimage of humanity. Theosophy Trust Books.
芝加哥风格引文IYER, Raghavan N. The Gupta Vidya: :the Pilgrimage of Humanity. Theosophy Trust Books, 2020.
MLA引文IYER, Raghavan N. The Gupta Vidya: :the Pilgrimage of Humanity. Theosophy Trust Books, 2020.
警告：这些引文格式不一定是100％准确.