Where do I find a service manual for a 1977 Rolls Royce Silver Shadow?

i have had trouble finding one online can anyone help mee.|||You may try eBay.It may take a while but keep trying and if you do find one it might cost big bucks.|||From a Rolls Royce dealership. alternatively put it on EBay as wanted item.|||think i can help you here, www.books4cars.com or phone 888 380 9277.