Singh P N. (2004). Self Development for Sure Success. Bishwanath Singh Trust.
芝加哥风格引文Singh P N. Self Development for Sure Success. Mumbai: Bishwanath Singh Trust, 2004.
MLA引文Singh P N. Self Development for Sure Success. Bishwanath Singh Trust, 2004.
警告：这些引文格式不一定是100％准确.