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_66552 ( "Manufacturer" text, "Transmission" text, "Engine Capacity" real, "Fuel Type" text, "L/100km Urban (Cold)" real, "L/100km Extra-Urban" real, "L/100km Combined" real, "mpg-UK Urban (Cold)" real, "mpg-UK Extra-Urban" real, "mpg-UK Combined" real, "mpg-US Urban" real, "mpg-US Extra-Urban" real, "mpg-US Combined" real, "CO 2 g/km" real, "Green Rating" text )

### Question ###
What's the mpg-US urban when the mpg-UK urban is 20 and the mpg-UK extra urban is less than 37.2?

### Accurate SQL ###

SELECT SUM("mpg-US Urban") FROM table_66552 WHERE "mpg-UK Urban (Cold)" = '20' AND "mpg-UK Extra-Urban" < '37.2'