CREATE TABLE table_name_72 (round VARCHAR2, h___a VARCHAR2, opponents VARCHAR2)

Which round has an H/A of A with Notts County as opponents?
SELECT round FROM table_name_72 WHERE h___a = "a" AND opponents = "notts county"
SELECT "round" FROM "table_name_72" WHERE "a" = "h___a" AND "notts county" = "opponents"