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_21977704_1 (no VARCHAR, entrant VARCHAR, driver VARCHAR)

### Question ###
Name the number for  automóvil club argentino for juan manuel fangio

### Accurate SQL ###

SELECT no FROM table_21977704_1 WHERE entrant = "Automóvil Club Argentino" AND driver = "Juan Manuel Fangio"