Following the format of the first two editions， the third edition of "Introduction to Reference Sources in the Health Sciences" is divided into three sections: The Reference Collection; Bibliographic Sources; and Information Sources. The purpose remains the same--to discuss various types of reference and informational sources and their uses for reference work in the health sciences. It is written for the library school student as well as for the practicing librarian. The edition has been revised to highlight changes in key reference sources in the health sciences since the previous edition. Portable electronic formats (CD-ROM and disks) and online availability of sources are highlighted. Chapter 5 has been expanded as "Audiovisual， Microcomputer， and Multimedia Reference Sources" to acknowledge the role of these resources in the health sciences. See all Editorial Reviews