(1) One document on computer network that everyone references. No hard copies are distributed.
(2) OR - Several copies are distributed to authorized people. Register to list who gets copies. No unauthorized copies. People will need to reference a manual to see the current verision. Requires some sort of audit to check that documents are up to date. Also, as Tony C. mentions, you will need to retrieve obsolete documents (all copies).
(3) Register (list) of all controlled documents and their revision level on computer network. Everyone will reference the same list. No copies of the register will be distributed. This would fit with either (1) or (2) above.
Training will be necessary to get people to understand how you control your documents. Training will be necessary for document changes to procedures.
(2) is very old school and very labor intensive. (1) is less labor intensive but you have to set up something that works like the internet with controlled access.