Description
Item Description:"This study was supported by Contract/Grant Number V101(93)P-1637,TO#16 between the National Academy of Sciences and the Department of Defense."--Title page verso.
Electronic resource.
Physical Description:xv, 123 pages : illustrations
Also available via the World Wide Web.
Bibliography:Includes bibliographical references (pages 80-82).
ISBN:0309502721 (electronic bk.)