Description
Item Description:Cover title.
Summary in Spanish.
Physical Description:72 pages : illustrations, map (1 folded color in pocket) ; 29 cm.
Also available on the World Wide Web.
Bibliography:Includes bibliographical references (pages 66-71).
Language:[Summary in Spanish and English on p. 2 of cover].
Additional Physical Form available Note:Also available on the World Wide Web.
Action Note:committed to retain