GUPTA B L. (1989). LIBRARY SERVICE: IMPORTANT DOCUMENTS. POINTER PUBLICATIONS.
芝加哥风格引文GUPTA B L. LIBRARY SERVICE: IMPORTANT DOCUMENTS. JAIPUR: POINTER PUBLICATIONS, 1989.
MLA引文GUPTA B L. LIBRARY SERVICE: IMPORTANT DOCUMENTS. POINTER PUBLICATIONS, 1989.
警告：这些引文格式不一定是100％准确.