Narravula Priyank. (2012). Industry and company research - Ports and shipping -India. NMIMS SBM.
芝加哥风格引文Narravula Priyank. Industry and Company Research - Ports and Shipping -India. Mumbai: NMIMS SBM, 2012.
MLA引文Narravula Priyank. Industry and Company Research - Ports and Shipping -India. NMIMS SBM, 2012.
警告：这些引文格式不一定是100％准确.