Another code error using subquery

[shani20]

I was attempting to do the following code -

SELECT First_Name, Last_Name


FROM Customers
WHERE CustomerNumber IN
(SELECT CustomerNumber
FROM Invoice
WHERE InvoiceNumber IN
(SELECT InvoiceNumber
FROM Invoice_Item
WHERE Item="Dress Shirt'))
ORDER BY Last_Name;

For some reason, I kept getting syntax error starting in (SELECT CustomerNumber - I am trying to figure out why.

[shani20]

Never mind - I figured out - had the wrong quote for Dress Shirt.