本文全面介绍了美国的法律文献与信息检索情况,对信息检索的步骤、要求都有详细的说明,对美国法律文献的分类、层次、效力等文中亦有详细介绍,让读者可以充分了解美国法律文献的基本情况,掌握信息检索的技巧。 This article provides a comprehensive introduction to the legal literature and information retrieval in the United States, detailed description of the steps and requirements for information retrieval, and a detailed introduction to the classification, hierarchy and effectiveness of the legal documents in the United States so that readers can fully understand American law The basic situation of the literature, master information retrieval skills.