ISO 690 is an international standard that provides guidelines for referencing and citing various types of information sources. It aims to ensure consistency and clarity in bibliographic references, making it easier for readers to locate the original materials. The standard covers different formats, including books, articles, and electronic resources. The guidelines in ISO 690 specify how to format citations, including the order of elements such as the author's name, title, and publication date. By following these rules, researchers and writers can enhance the credibility of their work and facilitate academic communication across disciplines.