What serial format was issued in 1972?
CREATE TABLE table_name_71 (serial_format VARCHAR, issued VARCHAR)
SELECT serial_format FROM table_name_71 WHERE issued = 1972
### Context: CREATE TABLE table_name_71 (serial_format VARCHAR, issued VARCHAR) ### Question: What serial format was issued in 1972? ### Answer: SELECT serial_format FROM table_name_71 WHERE issued = 1972