1著录项目与著录格式本标准分别规定了专著、连续出版物、专利文献、专著中析出的文献以及连续出版物中析出的文献的著录格式。在五种著录格式中，凡是标注“供选择”字样的著录项目系参考文献的选择项目，其余的著录项目系参考文献的主要项目。1．1专著1．1．1著录项目a．主要 1 Bibliographic Description and Formatting This standard specifies the format of the bibliographic presentation of the articles published in monographs, serials, patent documents, monographs, and serials. Among the five bibliographic formats, all bibliographic items marked “for selection” are references to the selected items of the bibliography, and the rest of the bibliographic entries are the main items of the bibliography. 1.1 Monographs 1.1.1 Bibliographic items a. main