Are we alone?
Subtitle: The possibility of extraterrestrial civilizations
By: Robert T. Rood & James S. Trefil.
Contributors: Trefil, James S., 1938- joint author.
Publisher: Scribner
Published: 1981
Place of publication: New York
Language: eng
Number of pages: 262
Subjects: Life on other planets.
Description: Examines the evidence for the existence of extraterrestrial life.
Notes: Includes index.