You can look up the IRS mailing address here: IRS
mailing addresses
Or you can try this printing option to see if it includes the federal instructions:
Please log back in your TurboTax account and "add a state" to open the return back up (you are not really adding a state, just to open it back up), then select Tools on the left, Print Center and choose the print center, then select returns and choose to print just the tax return or to include all worksheets as well.