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_28 (catalog VARCHAR, format VARCHAR, date VARCHAR)

### Question ###
From what catalog was the release that happened on April 12, 1968, and in LP format?

### Accurate SQL ###

SELECT catalog FROM table_name_28 WHERE format = "lp" AND date = "april 12, 1968"