Customer Table

I have a customer table with the column "invoice_customer" (this is the customer_acccount of account where the bill is invoiced..)

so to get the invoice_customer address for the customer account - 13301

SELECT B1.address as InvoiceAddress
from CUSTOMER AS B1 , CUSTOMER AS E1
WHERE B1.customer_account = E1.invoice_customer and E1.customer_account = '13310'

i want to add the above InvoiceAddress to the query below:

select customer_account, order_no, date_req, del_address (InvoiceAddress)
from CUSTOMERS
INNER JOIN Orders on CUSTOMERS.customer_account = Orders.account
where status 'D'

How would I put the 2 togtheer...

Thanks in advance!!!