Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_52353 ( "Region" text, "Date" text, "Label" text, "Format" text, "Catalogue" text )

### Question ###
Which format had a United States region and a date of August 11, 2009?

### Accurate SQL ###

SELECT "Format" FROM table_52353 WHERE "Region" = 'united states' AND "Date" = 'august 11, 2009'