CREATE TABLE table_23446 ("Index  ( Year ) " CLOB, "Author / Editor / Source" CLOB, "Year of publication" CLOB, "Countries sampled" FLOAT, "World Ranking  ( 1 ) " CLOB, "Ranking L.A.  ( 2 ) " CLOB)

What was the author/editor/source when the l.a. ranking was 1st?
SELECT "Author / Editor / Source" FROM table_23446 WHERE "Ranking L.A. (2)" = '1st'
SELECT "Author / Editor / Source" FROM "table_23446" WHERE "Ranking L.A. (2)" = '1st'