Extraterrestrials--where are they?
By: edited by Ben Zuckerman and Michael H. Hart.
Contributors: Zuckerman, Ben, 1943-; Hart, Michael H.
Edition: 2nd ed.
Publisher: Cambridge University Press
Published: 1995
Place of publication: Cambridge; New York
Language: eng
Number of pages: 239
Subjects: Life on other planets -- Congresses; Life -- Origin -- Congresses
Notes: Includes bibliographical references and indexes.
Hart's name appears first on the earlier edition.
"The purpose of a second edition ... is to enlarge upon and update issues that were debated in 1978 at a two-day symposium of the same name"--P. ix.