Kathpalia, Y. P. (1973). Conservation and restoration of archive materials. Unesco.
芝加哥风格引文Kathpalia, Yash Pal. Conservation and Restoration of Archive Materials. Paris: Unesco, 1973.
MLA引文Kathpalia, Yash Pal. Conservation and Restoration of Archive Materials. Unesco, 1973.
警告：这些引文格式不一定是100％准确.