Sonal singh. (1998). Universe of knowledge: Structure and development (1st.). Raj.
シカゴスタイル引用形Sonal singh. Universe of Knowledge: Structure and Development. 1st. Jaipur: Raj, 1998.
MLA引用形式Sonal singh. Universe of Knowledge: Structure and Development. 1st. Raj, 1998.
警告: この引用は必ずしも正確ではありません.