"This study was supported by Contract/Grant No. NASW-03031 between the National Academy of Sciences and the National Aeronautics and Space Administration."--t.p. verso
Chairman: David E. Longnecker
Includes bibliographical references (p. 53-55)
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries