CREATE TABLE table_name_54 (world_ranking__1_ VARCHAR2, ranking_la__2_ VARCHAR2, year_of_publication VARCHAR2)

In 2008, what was the world ranking that ranked 5th in L.A.?
SELECT world_ranking__1_ FROM table_name_54 WHERE ranking_la__2_ = "5th" AND year_of_publication = "2008"
SELECT "world_ranking__1_" FROM "table_name_54" WHERE "2008" = "year_of_publication" AND "5th" = "ranking_la__2_"