Science Tracer Bullet Series From Library of Congress
http://www.loc.gov/rr/scitech/tracer-bullets/tbs.html

The Library of Congress SCIENCE TRACER BULLET SERIES contains research guides that help you locate information on science and technology subjects. With brief introductions to the topics, lists of resources and strategies for finding more, they help you to stay “on target.” International Standard Serial Number (ISSN) 0090-5232. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog. This has been added to Reference Resources Subject Tracer™ Information Blog.