q=%E7%A6%8F%E6%A0%BC%E5%B0%94%2Crobert+william+fogel%2C%E6%81%A9%E6%A0%BC%E5%B0%94%E6%9B%BC%2Cstanley+l.+engerman&searchType=standard&isFacet=true&view=standard&searchWay=author&rows=10&sortWay=score&sortOrder=desc&searchWay0=marc&logical0=AND
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福格尔,robert william fogel,恩格尔曼,stanley l. engerman