Earth points

[johnk]

Evening all, I bought a 1980 P digital in BRG at the end of last year and for various reasons I'm only now getting round to looking at it properly. I've got a few electrical issues and decided to start with the easy stuff, cleaning contacts. Can someone tell me where i'll find all the main earth points on the car please? I'm guessing there will some in the engine bay and another at the rear of the car for light and fuel pump etc. Many thanks.