El Salvador : [guide] / El Salvador Travel information center. - New York : [s. n.], [s. a.]. - [8] p. : col. ill., map ; 23x40 cm, 23x10 cm. - 308(81) (NLA) . Subjects--Topical Terms: Sociography--Republic of El Salvador. Universal Decimal Class. No.: 308(81) (NLA)