ebrary, Inc, & Unger, R. W. (2011). Shipping and economic growth 1350-1850. Brill.
芝加哥风格引文ebrary, Inc, 与 Richard W. Unger. Shipping and Economic Growth 1350-1850. Leiden ; Boston: Brill, 2011.
MLA引文ebrary, Inc, 与 Richard W. Unger. Shipping and Economic Growth 1350-1850. Brill, 2011.
警告：这些引文格式不一定是100％准确.