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_name_61 (size VARCHAR, school VARCHAR, _number___county VARCHAR, year_joined VARCHAR, ihsaa_class VARCHAR)

### Question ###
What's the size of Centerville in 89 Wayne county with an IHSAA class of AA in the year before 1974?

### Accurate SQL ###

SELECT size FROM table_name_61 WHERE year_joined < 1974 AND ihsaa_class = "aa" AND _number___county = "89 wayne" AND school = "centerville"