What do referential indices refer to? /

Bibliographic Details
Main Author: Karttunen, Lauri
Corporate Author: Rand Corporation
Format: Book
Language:English
Published: [Santa Monica, Calif.] : [Rand Corp.], [1968]
Subjects:
Description
Item Description:"P-3854."--Cover.
"May 1968."--Cover.
Physical Description:29 pages ; 28 cm.
Bibliography:Bibliography: pages 28-29.