Cvs Book

Open Source Development with CVS by Karl Fogel, http://cvsbook.red-bean.com/

Available in paperback (2nd edition, July 2002) - ISBN 1932111204

An excellent resource for learning the ConcurrentVersionsSystem, available on-line and on DeadTree. Not to be confused with TheCederqvist.

You might also want to check out "Essential CVS", recently published by O'Reilly. ISBN 0596004591 . I found it to be pretty good.

CVS - Concurrent Versions System. Written in portuguese by Cristiano Caetano. Available at novateceditora.com.br/livros/cvs/. ISBN 85-7522-051-9