Description
Item Description:Chairman: David E. Longnecker.
"This study was supported by Contract/Grant Number NASW-03031 between the National Academy of Sciences and the National Aeronautics and Space Administration."--title page verso.
Electronic resource.
Physical Description:xiii, 79 pages ; 23 cm.
Also available via the World Wide Web.
Bibliography:Includes bibliographical references (pages 53-55).
ISBN:0309530164 (electronic bk.)