Proper Syntax to Join on Common Attributre value

Question

Does anyone know how to write this query properly?
"Display customer pairs as (first mi last) (first mi last) who are from the same state. Also how their respective states."
The table structure is appended at the bottom of this message.
I have ready tried a recursive join using a table alias. There is a problem though, the result set returns duplicate information. 14 rows are returned, but only 7 are unique customer/state pairs.
Return set:
..COLs 1-3....COL 4-6 .....COL 7
Customer-1 Customer-2 SomeState
Customer-2 Customer-1 SomeState
SQL query using a table alias to recursively join on "State" column:
SELECT "A"."c_first",
"A"."c_mi",
"A"."c_last",
"B"."c_first",
"B"."c_mi",
"B"."c_last",
"A"."c_state"
FROM "customers" "A",
"customers" "B"
WHERE ( "A"."c_state" = "B"."c_state" ) and
( "A"."c_id" <> "B"."c_id" )
I have tried modifying the above witih "IN" and "NOT IN" sub queries.
Table Structure:
CREATE TABLE CUSTOMER (
CUS_CODE     NUMBER PRIMARY KEY,
CUS_LNAME     VARCHAR(15) NOT NULL,
CUS_FNAME     VARCHAR(15) NOT NULL,
CUS_INITIAL     CHAR(1),
CUS_AREACODE      CHAR(3) DEFAULT '615' NOT NULL CHECK(CUS_AREACODE IN ('615','713','931')),
CUS_PHONE     CHAR(8) NOT NULL,
CUS_BALANCE     NUMBER(9,2) DEFAULT 0.00,
CONSTRAINT CUS_UI1 UNIQUE(CUS_LNAME,CUS_FNAME));

Answer 1

Sorry, I just relaized that that was a bad link I put into my post. I just fixed it.
Did you get that without the link? If so, very good. It could be a little simpler, check the fixed link.
Also, I would have words with my instructor if they were making me double quote everything because they made case sensitive table and column names :-)
Cheers
John