Cds strikes in hilarious way

A kitten (probably less than a month old) walked into a bar where I work, she's very cuddly, but she's also very dirty and obviously still needs her mom to clean her. Can I give her a bath? If yes, how? I have 3 cats at home, one of them is barely tolerating other 2, so other than giving her a place to sleep (puppies transport box) for a couple of nights until I can find her a better home, unfortunately I can't keep her. None of my kitties were ever in this condition so I'm a bit lost.