学术平台 UCSF Library
UC Library Search provides simple, one-stop searching for books and e-books, articles, digital media, archives and special collections, course reserves, and other content available through the libraries of the University of California system.
UC Library Search provides simple, one-stop searching for books and e-books, articles, digital media, archives and special collections, course reserves, and other content available through the libraries of the University of California system.
NSTL 国家科技图书文献中心,一个虚拟的科技文献信息服务机构,成员单位包括中国科学院文献情报中心、工程技术图书馆等