Unidentified flying objects (UFOs).
Contributors: Library of Congress. Science and Technology Division. Reference Section.
Series: LC science tracer bullet -- TB 91-1.
Publisher: Science Reference Section, Science and Technology Division, Library of Congress
Published: 1991
Place of publication: Washington, D.C
Language: eng
Number of pages: 12
Subjects: Unidentified flying objects -- Bibliography.
Notes: Caption title.

Shipping list no.: 92-056-P.

"September 1991."

Also issued online.